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Supplier: Restek
Description: Ready to use for QuEChERS extractions—no dilutions necessary. Support for GC and HPLC with MS, MS/MS, and selective detectors. Pesticide analysis is fast and simple using QuEChERS methods. Use these cost-effective QuEChERS standards for even greater lab efficiency. Standards are
- Form & Features: Liquid / Solution
- Features: Other
- Function: Reference / Chemical Standard
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Supplier: GFS Chemicals, Inc.
Description: ITEM#:1963 H2O CAS#:7732-18-5 F.W.:18.02 NFPA#:0-0-0 Specific Gravity: 1.000 DOT:NR Descriptions: Specification TEST 1. Resistivity @ 25 C 18.0 Mohm-cm 2. Silicate (as SiO2) 0.01 ppm 3. Heavy metals (as Pb) 0.01 ppm 4. Substances reducing permanganate Pass test 5. HPLC absorbance Pass test 6.
- Function: Reagent, Reference / Chemical Standard
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Supplier: Restek
Description: For simple sugar analysis by HPLC with refractive index/light scattering detection. Use with a silica column with amino functionality, as recommended by AOAC International. Use as a calibration standard for AACC Method 80-04. Offered dry for enhanced stability.
- Applications: Food / Beverage
- Form & Features: Liquid / Solution
- Function: Reference / Chemical Standard
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Supplier: Accuris
Description: Coffee and coffee products - Determination of the caffeine content using high performance liquid chromatography (HPLC) - Reference method
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Supplier: Accuris
Description: Coffee and coffee products \x97 Determination of the caffeine content using high performance liquid chromatography (HPLC) \x97 Reference method
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Supplier: Restek
Description: Conc. In Solvent and Volume: 1,000 μg/mL each in acetonitrile, 1 mL/ampul
- Form & Features: Liquid / Solution
- Features: Other
- Function: Reference / Chemical Standard
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Supplier: Restek
Description: Conc. In Solvent and Volume: 1,000 μg/mL each in acetonitrile, 1 mL/ampul
- Form & Features: Liquid / Solution
- Features: Other
- Function: Reference / Chemical Standard
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Description: ISO 20481:2008 specifies a high performance liquid chromatography (HPLC) method for the determination of the caffeine content of: green coffee; roasted coffee; soluble coffee, regular and decaffeinated; and mixed instant coffee products (e. g. coffee/chicory mix or cappuccino-type coffee
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Supplier: CSA Group
Description: ISO 20481:2008 specifies a high performance liquid chromatography (HPLC) method for the determination of the caffeine content of: green coffee; roasted coffee; soluble coffee, regular and decaffeinated; and mixed instant coffee products (e. g. coffee/chicory mix or cappuccino-type coffee
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Supplier: ASTM International
Description: qualitative technique. 1.5 The values stated in SI units are to be regarded as the standard. 1.6 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate
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Supplier: ASTM International
Description: qualitative technique. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the
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Supplier: ASTM International
Description: as mandated by national laws and regulations. As a practical matter, this practice is intended to cover requirements of reversed-phase (adsorption) HPLC systems. Microbore column and ion-exchange column HPLC systems are not covered here. It is not intended to exclude any other
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Supplier: ASTM International
Description: these cases, the increased depth of the sub-soil treatments reduce the soil surface exposure and facilitate increased levels of soil sorption. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This
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Blog: Poor Emil s Almanac
Operational Excellence & Lean Six Sigma Horiba's Lee Discusses Raman with Emil Ciurczak PAT in Perspective: Drugs Are Not Potato Chips USP Offers NIR System Suitability Reference Standard Thermo Fisher Scientific and Siemens Collaborate on FT-NIR Application Malvern Instruments Acquires Spectral
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USP India s New Facility Opens its Doors
six months, USP plans to extend this program to verify the quality of APIs and excipients. USP saw a tremendous need for more testing capability in India. Demand for reference standards in India has increased at a phenomenal rate almost doubling within the last few years, said John Fowler, USP
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Federal Register > Friday, June 17, 2011 > [76 FR 35620] Labeling and Effectiveness Testing; Sunscreen Drug Products for Over-the-Counter Human Use
HPLC reference standard : .
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Code of Federal Regulations > Title 21 - Food and Drugs > Food and Drug Administration > [21 CFR Part 201] Labeling
(B) Preparation of the HPLC reference standard .
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A chemometric approach to identify the grape cultivar employed to produce nutraceutical fruit juice
… O-glucoside chloride; the flavonols quercetin-3-O-rutinoside, quercetin-3-O-glucoside, kaemp- ferol-3-O-glucoside; and the flavan-3-ols procyanidin B1, procyanidin B2, (+)-catechin, and (−)-epicatechin were purchased from Extrasynthese (Genay—France) and used as HPLC reference standards .
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Phytochemical evaluation and HPTLC investigation of bark and extracts of Rhamnus Frangula Linn
Emodin from frangula bark was used,[90 % ( HPLC ) reference standard (Sigma Germany); ethanol, min. 96 % v/v, analytical reagent (Chemical Company, Romania); methanol, 99.3 % analytical reagent (Che- micalCompany,Romania); formic acidACS,analytical reagent Ph.
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Classification and chemometric study of Southern Italy monovarietal wines based on NMR and HPLC-DAD-MS
HPLC reference standards were purchased from Extrasynthese (Genay, France).
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Poster Presentations
Scheme 1: Synthesis of Precursor (1), HPLC Reference standard (2), and [18 F]RAGER .
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Determination of berberine in Phellodendron amurense from different sites of Changbai Mountain
Under the conditions, the HPLC reference standards and P. amurense extracts are shown in Fig. 3.
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Modulation of GR activity does not affect the in vitro metabolism of cortisol by rainbow trout ovarian follicles
Steroids used for HPLC reference standards were purchased from Steraloids (Newport, RI, USA).
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Synthesis and properties of mesobilirubins XIIγ and XIIIγ and their mesobiliverdins
As reference HPLC standards , intramolecularly hydrogen-bonded and thus ‘‘non-polar’’ bilirubin and mesobilirubin XIIIa exhibit approximately 18-min retention times, much longer than mesobilirubin IVa, which because it is incapable of intramolecular hydrogen bonding is more polar and faster moving (Table …
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Palladium‐mediated oxidative carbonylation reactions for the synthesis of 11 C‐radiolabelled ureas
HPLC reference standards were purchased from Sigma-Aldrich with the exception of 4-fluoro-6-methyl-1-[1-tetrahydro-2H-pyran-4-yl)-4- piperidinyl]-1,3-dihydro-2H-benzimiadol-2-one,40 .