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35370 results for Standards

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Standards

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

Phytocannabinoid Mixture 11 (CRM) (1 ml, 100 µg/ml), Cayman Chemical

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

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Phytocannabinoid Mixture 11 (CRM) (0.5 ml, 1 mg/ml), Cayman Chemical

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

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1,2-Dibromo-3-Chloropropane (DBCP), Restek

1,2-Dibromo-3-Chloropropane (DBCP), Restek

Supplier: Restek

2000ug/mL. Solvent: Purge and Trap Grade Methanol. Packaged 1mL/ampule.

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Nitrite-N QC Concentrate

Nitrite-N QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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608 Calibration Mix (16 components), Restek

608 Calibration Mix (16 components), Restek

Supplier: Restek

This mix contains 16 components.

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Phytocannabinoid Mixture 6 (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

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Antifoam Agent for Purge-and-Trap Samples, Restek

Antifoam Agent for Purge-and-Trap Samples, Restek

Supplier: Restek

Foam generated as purge gas passes through a sample can enter the analytical trap and possibly the GC column. This silica-containing antifoam agent is effective over a wide pH range and will not conflict with chromatography of target analytes.

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Cyanide in Soil Reference Material

Cyanide in Soil Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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TOX QC Concentrate, Certified Reference Material

TOX QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Alcohols Mix

Alcohols Mix

Supplier: SPEX CERTIPREP LLC

US EPA method 8015 is a general analytical method for the monitoring of certain non-halogenated VOCs and SVOCs by GC/FID.

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PCB Congener Mix, Method 8082A (19 Components), Restek

Supplier: Restek

Contains 19 components, those are 2-chlorobiphenyl , 2,3-dichlorobiphenyl , 2,2',5-trichlorobiphenyl , 2,4',5-trichlorobiphenyl, 2,2',3,5'-tetrachlorobiphenyl, 2,2',5,5'-tetrachlorobiphenyl, 2,3',4,4'-tetrachlorobiphenyl, 2,2',3,4,5'-pentachlorobiphenyl, 2,2',4,5,5'-pentachlorobiphenyl, 2,3,3',4',6-pentachlorobiphenyl, 2,2',3,4,4',5'-hexachlorobiphenyl, 2,2',3,4,5,5'-hexachlorobiphenyl, 2,2',3,5,5',6-hexachlorobiphenyl, 2,2',4,4',5,5'-hexachlorobiphenyl, 2,2',3,3',4,4',5-heptachlorobiphenyl, 2,2',3,4,4',5,5'-heptachlorobiphenyl, 2,2',3,4,4',5',6-heptachlorobiphenyl, 2,2',3,4',5,5',6-heptachlorobiphenyl and 2,2',3,3',4,4',5,5',6-nonachlorobiphenyl.

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WS Chlordane (Total) QC Concentrate

WS Chlordane (Total) QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Vanadium QC Concentrate, Certified Reference Material

Vanadium QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Hexavalent Chromium QC Concentrate

Hexavalent Chromium QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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SV Calibration Mix #2 (15 Components), Restek

SV Calibration Mix #2 (15 Components), Restek

Supplier: Restek

Contains: Benzoic acid (65-85-0); 4-Chloro-3-methylphenol (59-50-7); 2-Chlorophenol (95-57-8); 2,4-Dichlorophenol (120-83-2); 2,4-Dimethylphenol (105-67-9); 4,6-Dinitro-2-methylphenol (Dinitro-o-cresol) (534-52-1); 2,4-Dinitrophenol (51-28-5); 2-Methylphenol (o-cresol) (95-48-7); 4-Methylphenol (p-cresol) (106-44-5); 2-Nitrophenol (88-75-5); 4-Nitrophenol (100-02-7); Pentachlorophenol (87-86-5); Phenol (108-95-2); 2,4,5-Trichlorophenol (95-95-4); 2,4,6-Trichlorophenol (88-06-2).

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Chloral Hydrate QC Concentrate

Chloral Hydrate QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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ICP-MS Interferents A for 6020A ICS, Specpure®, Thermo Scientific

Supplier: Thermo Scientific Chemicals

Molecular Formula: Matrix: 2% HNO3/6.5% HCl/tr. HF C5
Physical Form: Liquid
UN No.: 3264
MDL No.: MFCD08064524

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THJ2201 N-pentanoic acid metabolite (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

An expected metabolite of THJ2201 in which the terminal alkyl fluoride has been replaced with a carboxyl group

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Organochlorine Pesticides QC Concentrate

Organochlorine Pesticides QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Trihalomethanes QC Concentrate

Trihalomethanes QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Organophosphorus (OP) Pesticides QC Concentrate

Organophosphorus (OP) Pesticides QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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MBAs QC Concentrate

MBAs QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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PCB in Water QC Concentrate

PCB in Water QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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PCB in Transformer Oil QC Concentrate

PCB in Transformer Oil QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Dissolved Oxygen QC Concentrate, Certified Reference Material

Dissolved Oxygen QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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SV Calibration Mix #4 (13 Components), Restek

SV Calibration Mix #4 (13 Components), Restek

Supplier: Restek

SV Calibration mix #4 contains carbazole (86-74-8); dibenzofuran (132-64-9); diethyl phthalate (84-66-2); 2,4-dinitrotoluene (121-14-2); 2,6-dinitrotoluene (606-20-2); hexachlorobenzene (118-74-1); hexachlorobutadiene (87-68-3); hexachlorocyclopentadiene (77-47-4); hexachloroethane (67-72-1); isophorone (78-59-1); 2-methylnaphthalene (91-57-6); nitrobenzene (98-95-3); 1,2,4-trichlorobenzene (120-82-1).

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XIL-350 Column Test Mix, Restek

Supplier: Restek

8 components

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Complex Nutrients QC Concentrate, Certified Reference Material

Complex Nutrients QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Nutrients in Soil QC Concentrate

Nutrients in Soil QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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NPW - Volatiles QC Concentrate

NPW - Volatiles QC Concentrate

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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