The AA-7000 series' 3-D optical system is capable of producing maximum performance for both flame detection (Pb 0.015 ppm) and furnace detection (Pb 0.00005 ppm). This is achieved through optimal adjustment of the light beam and digital filter, and by using optical components that restrict light loss.

The optical double-beam photometric system is automatically set for flame measurements, and the high-throughput, single-beam photometric system is automatically set for furnace measurements. With a new graphite furnace design, the AA-7000 Series has achieved improved lower limits of detection for furnace analysis in all fields, as compared to Shimadzu's previous series designs.

The AA-7000 has the smallest footprint of any flame or furnace AA spectrophotometer on the market, combining flame and furnace system mounts in the same compartment. When combined with an optional auto atomizer changer, the AA-7000F creates an integral burner and furnace that remains permanently installed in the combustion chamber. It supports flame analysis of high-concentration samples and furnace analysis of trace samples without changing the atomizer unit.

The AA-7000 series gives users a single high-performance autosampler for both flame and furnace, saving capital cost and set-up time. The ASC-7000 autosampler can layer a solution in the furnace like competitive systems, but takes analysis a step further by truly mixing a sample with four other solutions, such as matrix modifiers, matrix matching, dilution or standard addition samples, for a higher level of automation. Optimal background correction methods are installed as standard, and a high-speed self-reversal method provides correction over a 185 nm to 900 nm range.

Additionally, because safety is an important consideration for flame atomic absorption spectrophotometers, the AA-7000 series are also the first instruments in the world to be equipped standard with a vibration sensor that extinguishes flames automatically. Other safety features include a multimode automatic gas leak check and automatic air-N2O switching for flame-specification instruments, and an argon gas pressure monitor and over-current protection unit for furnace-specification instruments.

Looking for the latest technology available for highly accurate bulk analysis as well as quantitative depth profiling for coatings analysis and surface treatments? The GDS-850A focuses the latest technology in hardware and software design to enhance your performance requirements for both process control and research and development investigations. This instrument offers a spectral range from 120 - 800 nm and may be configured with up to 58 channels.

Features

• Separation of sputtering and excitation
• Linear calibration curves with wide dynamic range
• Lowered self absorption and material re-deposition
• Excitation of almost exclusively atom lines
• Fewer and narrower emission lines reduce interference
• Freedom from metallurgical history
• Fewer standards required for calibration
• Low Ar gas consumption
• Automatic cleaning between samples

Frequently Asked Questions

• Click here for FAQ on GDS

Brochure

• GDS850A

Please click on the links to the right for more information or request a quote today!

Difficult issues in the mining industry can cause challenges beyond your capabilities. Chemir Analytical Services has helped clients in the mining industry save time and money by providing reliable, cost-effective answers. Our non-routine analytical laboratory specializes in solving complex problems.

Our state-of-the-art facility is ISO 9001 certified and includes such instrumentation as Inductively Coupled Argon Plasma Spectroscopy (ICP), Atomic Emission Spectroscopy (AES), Cold Vapor Atomic Absorption Spectroscopy (CVAA), Ion Chromatography (IC), and Wet Chemistry.

We have developed, validated and transferred methods for analysis of inorganic materials. These include analysis for cations and anions such as metals, halides, sulfates, phosphates, nitrates, nitrites and more.

See also:

Materials identification

Contaminant identification

Failure analysis

ASTM Committee D11- Rubber and Rubber Products 'Document Sheet' for- Industry Reference Material IRM- 021 Stearic

Background

Industry Reference Materials (IRMs), used for a number of test methods under the jurisdiction of ASTM Committee D11, are prepared according to ASTM D4678, "Preparation, Testing, Acceptance and Documentation for Industry Reference Materials (IRM)". Refer to this for details not covered in this document. Candidate materials that are intended as IRMs are tested and accepted on the basis if (1) homogeneity of the lot and (2) an Accepted Reference Value or AR-value, for the appropriate properties for any IRM. The AR-value is the test value that should be obtained (within specified limits) for the selected one or more properties. AR-values are of two types: Global AR-values, obtained as an average (with specified 3 s limits) from an interlaboratory test program and Local AR-values, obtained as an average (with specified 3 s limits) for the laboratory involved with the preparation and testing.

Evaluation of the IRM

This lot of stearic acid is a Local AR-value IRM. It was produced in June 1998 by Henkel Corp. and the blending was done by Akron Dispersions, Inc. Homogeneity testing was conducted via the procedures as outlined in ASTM D 4678 Annex A.3 on the basis of Acid Number analysis via ASTM D1980-91, for eight individual samples taken from the beginning to end of the lot production. The lot was declared to be homogeneous using the procedure as outlined in Annex A.3. The Local AR-value for Acid Number as obtained for the homogeneity testing is given below. Two secondary properties, Iodine Number and heavy metal content were deemed important and an analysis was conducted for Iodine Number via ASTM D1959-89 and for heavy metal content via ICP Atomic Absorption on a composite stearic acid sample obtained by blending all individual homogeneity samples.

Local AR-value Acid Number (D1980-91) +/- 3s= 194.36 +/- 0.38

Secondary Property Iodine Number (D1959-89) +/- 1s= 0.56 +/- 0.29

Heavy metals (Co, Cu, Fe, Mn, Ni, Zn) Each less than 10 ppm

(The 3 s limits are based on 15 DF; 1 s limits are approximate, 3 DF)

Supplementary Information- Store this IRM in a cool dry location; it is expected to remain stable for a period of five years. A full 'Research Report', documenting all the analysis for this IRM, is on file at ASTM Headquarters, 100 Barr Harbor Dr., W. Consholhocken PA, 19428 USA.

Pricing is as follows

IRM-021 STEARIC ACID- 3200 grams per carton

1 Carton containing 4 bags (800 grams each) $200.00 plus shipping

Domestic shipments can be made within 48 hours of receipt of purchase order. International shipments can be made within 48 hours of receipt of funds in US currency. Wire transfer, Mastercard/VISA also accepted.

ARDL can provide their clients with complete materials characterization for compositional analysis, purity, thermal analyses, specification compliance certifications and SPC/QC compliance.

They provide a full complement of instrumentation and analytical equipment for the detailed compositional analysis (reverse engineering) of rubber, thermoplastic elastomers and plastic products and raw materials.

· High Performance Liquid Chromatography (HPLC)

· Gas Chromatography/Mass Spectroscopy (GC-MS)

· Atomic Absorption Spectroscopy (ICPAA)

· Ultraviolet Spectroscopy (UV)

· Thermal Analytical Equipment (DMA, TMA, DSC, TGA)

· Attenuated Total Reflectance (ATR) and FTIR/Microscope

· Leco Sulfur, Nitrogen, Oxygen, Carbon, Hydrogen Determinator

· Thin Layer Chromatography

· Membrane Permeability, Gas/Liquid

· Particle Size distribution, sieve analysis and carbon black tests

· Extraction, pyrolysis, cross-link density, ash analysis, bloom analysis and optical stereomicroscopy

· Rubber & Plastics Formula Reconstructions

More than just analysis - they apply their years of experience in developing rubber products and solving rubber industry problems to the analysis - to solve your problem.

If you would like more information about their chemical testing services or facilities, or how their chemical testing services can help your business, contact Dennis Coz, at Akron Rubber Development Laboratory, Inc.