Reference Articles 1 - 100 of 416
-
Crushing concrete coarsely and fine
Description: Concrete is a complex material, which its characteristics due to its composition and as a result of the systematic addition of additives can be adjusted very differentiated. However, this results in ...
-
Planetary Ball Mills as an instrument in mechanochemistry
Description: One of the most significant fields of application for FRITSCH Planetary Mills is mechanochemistry. This subject is in theory, as well as in practice very wide-ranging and versatile. In the article you ...
-
Biofuel - Engergy supplier of the future?
Description: Biofuel like biodiesel, plant oil, ethanol, bio methane or the synthetic biomass- to- liquid (BtL)- fuels everyone is talking about them. They are at present the only renewable alternative in the ...
-
Processing cocoa beans in the laboratory
Description: Routine quality inspections of nuts in production and trade are subject to clear regulatory requirements. The following article contains compact information about the requirements, as well as aspects ...
-
Using the RULER technology
From: Fluitec InternationalDescription: Determining the Remaining Useful Lifetime of Lubricating oils using RULER technology" highlights the power of combining RULER with traditional oil analysis tests for a more accurate perspective on the ...
-
New Autoclave Installation Cuts Day-to-Day Sterilising Costs
From: Priorclave, Ltd.Description: The recent installation of a Priorclave 450 litre autoclave within the 'plant' research laboratory of York University's Biology Department is certainly good news. It has strengthened its green ...
-
Measurement of the Ultra Violet Protection Factor Assigned to Ultraviolet Protection Clothes
Description: Given the current concern for UV exposure, there are many UV protected textile fabrics on the market. In this application, we use UV-Visible spectrophotometry to measure the UV protection value for ...
-
Game Changers in Cleaning Validation and Verification
Description: Traditional cleaning validation and verification approaches tend to focus on complex limits equations, inefficient recovery studies, costly product-specific method development, "pass/fail" ...
-
What to expect when you are expected to drive a cleaning validation project.
Description: Implementing or driving a cleaning validation project can be a "roller coaster" of emotions and challenges. Here's an annotated graph of what it's like to drive a cleaning validation project when ...
-
Current challenges: Designing high-efficiency filters from nanofibers
From: Phenom-World BVDescription: The advent of nonwoven nanofibers is enabling the development of a new generation of highly sensitive filters. Surging global demand is creating a compelling need for improved production and quality ...
-
Metallurgical inspection
From: Phenom-World BVDescription: The properties of many engineering materials are mostly governed by a combination of metal composition and the morphology and distribution of key microstructural features. ...
-
Characteristics of sand and criteria for its comminution
Description: Sand is a common unconsolidated sedimentary rock. The mineral composition varies. The analytical evaluation of the chemical composition and therefore the aptness for the intended uses make the ...
-
Production of mixtures on a laboratory scale
Description: Mixed were solid with solid substances, solid with liquid substances and liquids with solids. As solid phases mostly fine powders are used, which during the mixing process should not be further ...
-
Best Practices for Establishing and Maintaining Mammalian Cell Culture
From: NuAire, Inc.Description: Mammalian cell cultures have been around for decades-but they definitely aren't going anywhere. They are increasingly valuable in drug development, for which the pharma industry is turning to ...
-
Cleaning CO2 Incubator Water
From: NuAire, Inc.Description: Water Type and Cleaning for Incubators ...
-
Incubator Sterility Tests
From: NuAire, Inc.Description: Incubator contamination is inherently a potential for all incubator manufacturers. Typical laboratories have thousands of airborne contaminants that may enter a tissue cell culture incubator during a ...
-
Determining the effects of angle on the infra-red reflectance properties of thin films in architectural glass using the Agilent Cary 630 FTIR
Description: The glass used in buildings plays a key role in keeping the building energy effi cient. Similar to walls and ceilings being insulated, glass can be coated to alter the refl ectivity of infrared (IR) ...
-
Measuring the reflective properties of architectural glass using the Agilent Cary 630 FTIR with 10 degree Specular Reflectance Accessory
Description: Buildings around the world are striving to become greener and more energy effi cient. While there are many aspects to building construction that enable 'green' capabilities, one area of consideration ...
-
Monitoring for Microcystins in Raw Water Supply Reservoirs Using the Agilent 6410 Triple Quadrupole LC/MS
Description: The glass used in buildings plays a key role in keeping the building energy effi cient. Similar to walls and ceilings being insulated, glass can be coated to alter the refl ectivity of infrared (IR) ...
-
Analysis of Organophosphorus Pesticides in Baby Foods Using a Triple-Quadrupole GC/MS/MS System
Description: Contamination of food products with pesticides is a growing concern because of recognized adverse health effects; this concern is particularly acute for baby foods. This application note presents ...
-
Hypoxia Workstation with HEPA-Filtration Option Demonstrates Enhanced Containment to Protect User
From: Baker Company (The)Description: Hypoxia workstations are utilized by researchers who require stable and accurate low oxygen environments for their research. Oxygen, carbon dioxide, temperature and humidity are precisely controlled ...
-
LC/MS/MS Analysis of Oil Dispersants in Water
Description: Oil dispersants are used to reduce the impact of oil spills in an aquatic environment. While there is conflicting information regarding their safety, rapid and sensitive methods for determination of ...
-
Measurement of Band Gap of Titanium (IV) Oxide
Description: Introducing the calculation of band gap based on the diffuse reflectance spectra obtained from measurement of titanium dioxide using the UV-2600 ultraviolet-visible spectrophotometer. ...
-
Measurement of Elemental Impurities in Pharmaceutical Products by ICP-AES and ETAAS
Description: Electrothermal atomic absorption spectrometry (ETAAS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES) are widely used as trace metal analytical methods. In addition, they are ...
-
Measurement of TOC in Electroplating Solution
Description: Because organic additives can affect plating quality, it is important to manage them to ensure product quality. This application presents measurement of a nickel plating solution containing nickel ...
-
Quantitative Analysis of Antimony (Sb) in Plastics by EDXRF
Description: Presenting the results of sensitivity evaluation testing of commercially available antimony-spiked PE (polyethylene) plastic standards using the EDX-720/GP X-ray fluorescence spectrometer. In ...
-
Monitoring Leaks from Heat Exchanger - Paper Plant
Description: The EZ Access Falling Stream Flow Cell - Compatible with TD-4100 and TD-4100XD. Â The EZ Access Falling Stream Flow Cell = Easy access for easy cleaning and easy optical filter change for application ...
-
Forensic Applications of Phenom Desktop SEM
From: Phenom-World BVDescription: Optical microscopes are widely used for routine imaging tasks, are affordable and easy to operate. Unfortunately, they can only resolve to the micron level and have ... ...
-
Industrial Hygiene Report: Control of Hydrochloric Acid Vapors in a Lab Setting
From: Sentry Air Systems, Inc.Description: TEST OBJECTIVE: A test was set up in accordance with NIOSH Test Method 7903 to test for airborne concentrations of inorganic acids, in this case HCl. The test objective was to determine the ...
-
Grinding teas - herbal tea, black tea or green tea
Description: An efficient sample preparation for fast, reliable and reproducible analyses results is becoming nowadays increasingly more important. Especially in the food industry is an exact sample preparation as ...
-
Planetary-Ball Mills as an instrument in mechanochemistry
Description: One of the most significant fields of application for FRITSCH Planetary Mills is mechanochemistry. This subject is in theory, as well as in practice very wide-ranging and versatile. In the article you ...
-
Justifying Total Organic Carbon (TOC) Limits Based on Process Capability
Description: Using a process capability approach based on historical or current total organic carbon (TOC) data for swab and rinse samples can demonstrate whether the cleaning process and the limits used for this ...
-
Reducing the Analytical Method Footprint
Description: A leading pharmaceutical manufacturer with high production demands faced cleaning validation challenges. This company's mature, validated production facility was expanding the amount of products they ...
-
Aqueous and organic GPC of food
Description: Many analysts conversant with gel permeation chromatography (GPC) will be familiar with its use in the analysis of food packaging. However, GPC also has wide applicability in characterizing various ...
-
Choose the right filter for the right application
Description: Column plugging is the most frequent cause of LC column failure. Injecting samples containing even small amounts of particulates clogs the inlet and causes high column backpressure, retention time ...
-
Faster, more cost-effective methods for generic drugs using Agilent 1290 Infinity and ISET
Description: Keeping the cost of generic drugs affordable, while ensuring their purity and efficacy is a worthy goal. In this article, we demonstrate an efficient way to significantly reduce the cost of analyzing ...
-
Tips and tools for trouble-free food testing
Description: Every food chemist is aware of the increasing complexity of globalized food sources and supply chains. Globalization drives the need for detailed analysis of nutritional value, composition, and ...
-
Monitoring Hydroelectric Dam Sumps
Description: TD-4100 Oil in Water Monitors for Hydroelectric Dam Sumps Hydroelectric Dams produce electric power via the force of the water flowing through the dam. ...
-
Magnetic Drives (Mag Drive) Explained
Description: Mag drives explained... detailed parts ...
-
Biological Safety Cabinet Canopy Exhaust Connection Saves Energy and Improves Overall Safety Performance
From: Baker Company (The)Description: With environmental resources becoming more and more limited and energy costs on the rise, reducing energy consumption is an important consideration for every laboratory. It is especially important in ...
-
Biosafety Cabinets at Baylor Institute for Immunology Research Provide Safety and Reliability
From: Baker Company (The)Description: The Baylor Institute for Immunology Research (BIIR) is among the leading translational immunology research centers in the world. Read about how BIIR is utilizing biosafety cabinets in the manufacture ...
-
Biosafety Cabinets at the University of Southern Maine's Wise Laboratory are at the Heart of High-Impact Toxicology Research
From: Baker Company (The)Description: The Wise Laboratory is leading an exploration of the impact of the 2010 Deepwater Horizon oil rig explosion on the wildlife of the Gulf of Mexico. This multi-year study includes several ocean voyages ...
-
Innovative Technologies Result in a More Sustainable and Energy-Efficient Total Exhaust (Class II Type B2) Biological Safety Cabinet
From: Baker Company (The)Description: Biological safety cabinets (BSCs) provide the primary source of containment for microbiological research. Laboratories that need containment and removal of vapors, mists and particulates will often ...
-
New Animal Transfer Station Offers Improved Containment and Allergen Control
From: Baker Company (The)Description: When using animals in research, protecting the animal from both the lab environment and cage-to-cage cross-contamination are a researcher's highest priorities. Today, increased awareness of the ...
-
An Introduction to CARS Microscopy
From: Leica Microsystems, Inc.Description: CARS (Coherent Anti-Stokes Raman Scattering) microscopy is a dye-free method which images structures by displaying the characteristic intrinsic vibrational contrast of their molecules ...
-
Array of Equipment Used to Detect Contamination in Water
Description: Bari Wrubel, supervisor of the Marysville Water Plant, points to the water monitoring equipment in the Marysville plant. The big box on the right is the fluorometer, the long narrow device is the ...
-
Cleaning Validation: Verifying the Performance of a Validated Cleaning Process Using TOC
Description: The use of total organic carbon (TOC) in cleaning validation has become a widespread best practice throughout the pharmaceutical industry as an analytical method designed to verify the performance of ...
-
Recovery of Complex Compounds with TOC: Cleaning Agents
Description: The goal of any cleaning validation program is to reduce the opportunity for product contamination or compound carryover that may be present on the production equipment. The validation of this type of ...
-
The Advantages of TOC Analysis Over Traditional Product Specific Analytical Methods for Cleaning Validation
Description: Interest in Total Organic Carbon (TOC) analysis as a non-specific method for cleaning validation has grown considerably during the past decades because specific analytical testing, like High ...
-
TOC for Cleaning Validation: Do you Have the Right Method for the Right Application?
Description: The United States Food and Drug Administration (FDA) and its international equivalents, have stipulated longstanding regulations designed to serve the public with respect to controlling the strength, ...
-
Validating the TOC Method for Cleaning Validation Applications in the Pharmaceutical Industry
Description: Pharmaceutical drug manufacturers looking for gains in quality and efficiency have led to a growing interest in using Sievers* Total Organic Carbon (TOC) Analyzers for cleaning validation. Most ...
-
The Sievers InnovOx TOC Analyzer: Boiler Water Monitoring
Description: Corrosion in boiler systems can quickly result in tube failure and plant shutdown. A properly-operating deaerator and an appropriate chemical program will greatly extend boiler life by addressing ...
-
TOC Analysis in a Chemical Laboratory
Description: The monitoring, control, and optimization of organics in these applications are generally done using the Total Organic Carbon (TOC) method. The challenge then becomes finding a robust TOC analyzer ...
-
Sievers 900/5310 C Series TOC Analyzers - Calibration
Description: The Sievers* 900 and 5310 C Series TOC Analyzers incorporate a number of new features and options designed toimprove the accuracy and linearity of the TOC measurements. Three new calibration options ...
-
Orange County Water District Trusts Sievers TOC in Groundwater Replenishment System
Description: OCWD prides itself in not only using a cutting edge treatment system, but also utilizing analytical equipment to ensure the water being reintroduced into the ground is the highest quality. Monitoring ...
-
Reducing Costs at a Drinking Water Plant through Monitoring of Total Organic Carbon (TOC) and Process Optimization
Description: As many municipalities strive to balance regulations set forth in the USEPA's Safe Drinking Water Act, they are growing more concerned about how to reduce spending in their plant treatment processes. ...
-
TOC Analysis: The Best Tool in a Drinking Water Facility's Toolbox
Description: TOC, an operator tool, spans a wide variety of applications, and is widely thought of as a tool to help a utility comply with DBP regulations, but it also assists with cost savings from optimizing a ...
-
Water Quality Changes During 500-Year Flood Controlled with Sievers TOC Analyzer
Description: During the flooding, the Cobb County - Marietta Water Authority realized the importance of knowing more than just the turbidity levels in their source water. By identifying TOC values, the plant was ...
-
Analysis of PBDEs in Sediment Using GC-MS/MS
Description: Due to their toxicity and persistence, the industrial production of PBDEs is to be eliminated under the Stockholm Convention. In order to determine PBDEs in sediments, they need to be separated from a ...
-
Emission Spectrum Measurement for LED Lamp by UV-Vis
Description: The application presents measurement of the emission spectra of several LED bulbs using the UV-2600 ultraviolet visible spectrophotometer, as well as their spectrum profiles and light distributions. ...
-
ICP Analysis of Additive Elements in Lubricating Oil
Description: Analysis of additives, consisting of various organic metal substances, is important to ensure quality management. ICP emission spectrometry is an effective method for this analysis; this note presents ...
-
LC/MS/MS Analysis of Pesticides in Foods
Description: A heightened concern for food safety has resulted in regulations governing the levels of pesticides in foods. This application presents optimized methods for the simultaneous multi-residue analysis of ...
-
Measurement of Cesium in Tap Water and Soil by Atomic Absorption Spectrometry
Description: Recently, technologies that can efficiently remove radioactive cesium (chiefly Cs-137) from water and soil have been actively researched. The study and evaluation of these removal technologies can be ...
-
Measurement of Lead in Lead-Free Solder by ICP-AES, FAAS and EDX
Description: Introducing examples of analysis by ICP emission spectroscopy (ICP-AES), flame atomic absorption spectroscopy (FAAS), and energy dispersive X-ray fluorescence spectroscopy (EDX) of lead (Pb) in a ...
-
Measuring TOC in Brine Solutions
Description: In the chlor-alkali and electrolysis industries, as well as many others, there is a need to analyze for TOC in samples containing high salt concentrations. These samples can range from sea water, ...
-
GE and Severn Trent Services Work Together to Gain UKAS Accreditation for Drinking Water and Waste Waters
Description: Since purchasing the instruments, STS has successfully validated the Sievers InnovOx TOC Analyzers to the requirements of the Environment Agency's MCerts scheme for waste water analysis and the ...
-
Sievers InnovOx: Food and Beverage Load Monitoring for Total Organic Carbon (TOC)
Description: The food and beverage industry uses extraordinarily large amounts of water within their manufacturing processes. Water can be used as an ingredient, a cleaning solvent, and as a utility, such as for ...
-
Heating a nanoparticle solution to 40 ºC [LTP]
From: AmbrellDescription: Heat a nanoparticle solution to get it to increase at least 40 ºC for medical research/laboratory testing... ...
-
Scaling Batch Processes: How to Develop Flow Processes
Description: The pharmaceutical industry in particular is still dominated by flexible batch processes and segmented unit operations. Using a unique scalable flow platform, the researcher can now rapidly evaluate ...
-
Solvent Choices for Infrared Testing of Oil and Grease in Water
From: Wilks Enterprise, Inc.Description: Water is a very strong absorber in the mid infrared (IR) region where oil is measured. We see the effect of infrared absorbance when a cold bucket of water is left in the sun is quite warm by ...
-
Physical & Thermodynamic Properties of Common Gases
From: ChromaloxDescription: Physical & Thermodynamic Properties of Common Gases ...
-
Compliance with JP 16 TOC Requirements Using the Sievers 900 and 500 RL TOC Analyzers and Standards
Description: The first instrument requirement for the total organic carbon test detailed by the Japanese Pharmacopeia (JP) in the General Tests section <2.59> specifies that the instrument be capable of measuring ...
-
Interferometric 3D tracking of several particles in a scanning laser focus
From: Piezosystem Jena, Inc.Description: High-Speed tracking of several particles allows measuring dynamic long-range interactions relevant to biotechnology and colloidal physics. In this paper we extend the successful technique of 3D ...
-
Adaptive wavefront correction in two-photon microscopy using coherence-gated wavefront sensing
From: Piezosystem Jena, Inc.Description: The image quality of a two-photon microscope is often degraded by wavefront aberrations induced by the specimen. We demonstrate here that resolution and signal size in two-photon microcopy can be ...
-
Aminoglycoside-Induced Phosphatidylserine Externalization in Sensory Hair Cells Is Regionally Restricted, Rapid, and Reversible
From: Piezosystem Jena, Inc.Description: The aminophospholipid phosphatidylserine (PS) is normally restricted to the inner leaflet of the plasma membrane. During certain cellular processes, including apoptosis, PS translocates to the outer ...
-
ATP-dependent mechanics of red blood cells
From: Piezosystem Jena, Inc.Description: Red blood cells are amazingly deformable structures able to recover their initial shape even after large deformations as when passing through tight blood capillaries. The reason for this exceptional ...
-
Calcium imaging of inner ear hair cells within the cochlear epithelium of mice using two-photon microscopy
From: Piezosystem Jena, Inc.Description: Mice are an excellent model for studying mammalian hearing and transgenic mouse models of human hearing, loss are commonly available. However, the mouse cochlea is substantially smaller than other ...
-
Chromophore concentrations, absorption and scattering properties of human skin in-vivo
From: Piezosystem Jena, Inc.Description: Absorption and reduced scattering coefficients of in-vivo human skin provide critical information on non-invasive skin diagnoses for aesthetic and clinical purposes. To date, very few in-vivo skin ...
-
Growing Hydrogen Expectations : Embedded Catalyst Design for Active and Stable Catalysts (.pdf)
From: Hiden AnalyticalDescription: The mass spectrometer was used to prove the superior thermal stability, during methane partial oxidation Figure 1, of an innovative embedded Rh@Al2O3 catalyst with respect to conventional impregnated ...
-
Comparing Oil in Water Analysis Methods
From: Wilks Enterprise, Inc.Description: While the amount of oil in water is highly regulated -- it can also be a challenging measurement. It is complicated by the fact that oil comes in many forms and the measurement is defined by the ...
-
Comparison of EN 14078 and ASTM D7371 Infrared Biodiesel Methods
From: Wilks Enterprise, Inc.Description: Infrared (IR) analysis is the most widely used measurement technology for measuring biodiesel in diesel. Both EN 14078 and ASTM D7371 methods use infrared as the analytical method and more ...
-
Measurement of Oil in Water for Petrochemical Industry
From: Wilks Enterprise, Inc.Description: InfraCal TOG/TPH Analyzers provide on-site ppm measurements to help ensure upstream or downstream wastewater complies with discharge permits to avoid potentially costly fines. They are in operation ...
-
Measuring the Oil Content in Frac Water
From: Wilks Enterprise, Inc.Description: The amount of water used in and produced by hydraulic fracturing of shale gas wells is in the millions of gallons per well. Whether the water is going to be taken off site for disposal or reused for ...
-
Thinking Process Before Scale Up in Advanced Materials Production
Description: Harper discusses key considerations to ensure technical and commercial success when scaling advanced materials from thimbles to tonnes. ...
-
Scientific Illustration and Animation for Research Scientists
From: Leica Microsystems, Inc.Description: One of the crucial tasks of a research scientist is reporting and communicating about his work. This is vital for cutting edge research; it is crucial to gain insights from other experts, to get a ...
-
EDXRF Analysis of Lead, Cadmium, Mercury and Chromium in Zinc Alloy
Description: X-ray fluorescence analysis can be used to quickly and easily analyze samples in solid, powder and liquid states nondestructively, and is therefore widely used as a screening method for compliance ...
-
EDXRF Analysis of Sulfur and Other Elements in Oil
Description: The concentrations of sulfur substances in fuel oil are regulated by law in many countries. Using EDXRF spectrometry, the limit of detection and quantitation of sulfur was determined, and simultaneous ...
-
Measurement of Sodium and Potassium in Portland Cement by Flame Atomic Absorption Method
Description: Low-alkali types of Portland cement contain concentrations of Na and K that are suppressed to low levels. Presented here is an analysis of Na and K in a standard sample of Portland cement (211R) to ...
-
Particle Size Distribution Measurement of Powdered Milk
Description: In this report, we introduce measurement of 2 different kinds of powdered milk using the Shimadzu SALD-7101 Nano Particle Size Analyzer. In addition, we conducted testing to determine whether or not ...
-
Sensitive, Ultrafast LC/MS/MS Analysis of Mycotoxins in Food
Description: Mycotoxins are fungal poisons that threaten the world food supply. This application demonstrates a rapid, reliable LC/MS/MS method for the detection of mycotoxins in food as well as for untargeted ...
-
UV-Vis Evaluation of Anti-Reflective Film on a Solar Cell
Description: Investigating the reflectance characteristics and color values of anti-reflective film using the UV-2600 with an integrating sphere mounted to allow measurement over a wider wavelength range, ...
-
Care and Maintenance of ESD Wear
From: All-Spec IndustriesDescription: There are a few tips that you should keep in mind when cleaning any ESD-safe wear. ...
-
Nuaire Model NU-480-600E Decontamination
From: NuAire, Inc.Description: The purpose of this study is to demonstrate that the auto formalin decontamination process as stated by Nuaire can effectively deactivate Bacterial Indicator (BI) strips of B. Atrophaeus at a ...
-
Boiler Feedwater, Condensate Return & Make-up Water
From: TOC Systems, Inc.Description: APPLICATION SYSTEMS ENGINEERING/Boiler Feedwater, Condensate Return & Make-up Water ...
-
COOLING TOWER/COOLING WATER
From: TOC Systems, Inc.Description: APPLICATION SYSTEMS ENGINEERING/COOLING TOWER/COOLING WATER ...
-
DRINKING WATER
From: TOC Systems, Inc.Description: APPLICATION SYSTEMS ENGINEERING/DRINKING WATER ...
-
POWER GENERATION
From: TOC Systems, Inc.Description: APPLICATION SYSTEMS ENGINEERING/POWER GENERATION ...
-
Waste Water Treatment
From: TOC Systems, Inc.Description: During the past number of years, wastewater treatment has become sophisticated, employing various efficient treatment strategies, which require advanced instrumentation to monitor & control such ...
-
Metallography with Color and Contrast
From: Leica Microsystems, Inc.Description: Metallography with Color and Contrast ...
-
Heat a block of Haynes nickel alloy to test the crack growth rate [LTP]
From: AmbrellDescription: Heat a block of Haynes nickel alloy from 600 ºF (316 ºC) to 1600 ºF (871 ºC) in order to collect data on the crack growth rate for an aerospace application. ...
