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Supplier: GFS Chemicals, Inc.
Description: . Heavy metals (as Pb) 0.01 ppm 4. Substances reducing permanganate Pass test 5. HPLC absorbance Pass test 6. HPLC gradient elution Pass test Properties No properties.
- Enhancers, Modifiers & Specialty Additives: 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: 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
- Applications: Other
- Form: Liquid / Solution
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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: 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: 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: analytes from matrix interferences. Long column lifetime ensures consistent performance injection after injection. Fast, 4-minute, dilute-and-shoot LC-MS/MS analysis supports high sample throughput. Save time and increase certainty with Restek’s definitive EtG/EtS method and quality reference
- Column Length: 10 cm
- Column Type: Analytical Column
- Construction Material: Steel - Stainless
- Internal Diameter: 2.1 mm
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Supplier: Restek
Description: lists of target compounds and concentration limits in purchase agreements. This test calls for isopropanol extraction, HPLC separation, and UV detection. Restek offers a variety of reversed phase HPLC columns suitable for these separations. Restek also designed a reference
- Applications: Food / Beverage
- Form: Liquid / Solution
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Supplier: ASTM International
Description: 1.1 This is a high-performance liquid chromatographic (HPLC) test method applicable to the determination of certain n-methylcarbamoyloxi mes and n-methylcarbamates in ground water and finished drinking water (1) (also see EPA Method 531.1, Revision 3.0). The following compounds can be
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Supplier: ASTM International
Description: references for the information are provided (3- 5). 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and
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Supplier: Restek
Description: lists of target compounds and concentration limits in purchase agreements. This test calls for isopropanol extraction, HPLC separation, and UV detection. Restek offers a variety of reversed phase HPLC columns suitable for these separations. Restek also designed a reference
- Applications: Food / Beverage
- Form: Liquid / Solution
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Supplier: ASTM International
Description: 1.1 This practice covers requirements for defining, testing, and verifying the performance of high performance liquid chromatographic (HPLC) systems when used for trace analysis of pesticides and toxic substancesin carrying out pollution control programs and in assessing the quality of food
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Supplier: ASTM International
Description: 40°C exposure tests with the chosen substrate replacing corn cob. The results with corn cob, however, are a reference that must be reported with the alternate substrate results. The difference in solvent content of the granules before and after weathering is an indication of the emission of
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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 .