You searched for: Standards

Supplier: CARGILLE

Refractive index liquids have a broad range of applications in diversified fields.

Supplier: Restek

This mixture can be used for quantification (AOCS method CE 1a–13) and approximate the compositions of oils.

Supplier: Restek

This mixture can be used for quantification (AOCS method CE 1a–13) and approximate the compositions of oils.

Supplier: Restek

This mixture can be used for quantification (AOCS method CE 1a–13) and approximate the compositions of oils.

Supplier: Restek

This mixture can be used for quantification (AOCS method CE 1a–13) and approximate the compositions of oils.

Supplier: Restek

This mixture can be used for quantification (AOCS method CE 1a–13) and approximate the compositions of oils.

Supplier: Restek

Unleaded gasoline composite standards are comprised of three separate sources each of 87, 89, and 93 octanes blended in equal portions.

Supplier: LGC Standards PROMOCHEM

A unit contains approximately 5,5 gm soya-maize oil blend in 10 ml amber ampoule.

Supplier: LGC Standards PROMOCHEM

These are intended primarily for the evaluation and calibration of methods for analysis of cements and materials of similar matrix.

Supplier: LGC Standards PROMOCHEM

This reference standard is intended for use in evaluating analytical methods for the determination of selected of selected polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyl (PCB) congers, chlorinated pesticides and polybrominated diphenyl ether (PBDE) cogeners in house dust and similar matrices.

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).

Supplier: Restek

This mixture can be used for quantification (AOCS method CE 1a–13) and approximate the compositions of oils.

Supplier: Restek

EPA method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection. Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

Supplier: Restek

EPA method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection. Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

Supplier: Restek

Calibration check mix, 8270 acid, 2000 µg/ml each in methylene chloride, : N/A, 1 ml/ampoule

Supplier: LGC Standards PROMOCHEM

White clover (trace elements), : N/A

Supplier: CUSTOM MADE CHEMICALS LAB

Total acid number TAN 17034, 2 mg KOH/g

Supplier: Restek

The solvents consists of five components, they are benzene (10 mg/ml), carbon tetrachloride (20 mg/ml), 1,2-dichloroethane 25 mg/ml, 1,1-dichloroethene (40 mg/ml), and 1,1,1-trichloroethane (50 mg/ml).

Supplier: LGC Standards PROMOCHEM

This reference standard is intended primarily for use in the calibration of apparatus and the evaluation of techniques employed in the analysis of calcined petroleum coke and other materials with a similar matrix.

Supplier: Restek

EPA method 8310 PAH mixturecontain 18 components.

Supplier: Restek

The mix consists of diesel fuel #2 composite, mineral oil.

Supplier: Restek

These solutions are prepared from a single-source (one-refinery) product.

Supplier: Restek

This mix also can be used for underground storage tank monitoring.

Supplier: Restek

This carbohydrate LC performance check mix consist of five components which performance qualification (PQ) determines the precision of the LC system.

Supplier: Restek

Pentafluoro benzene in purge-and-trap grade methanol, 2000 µg/ml, : N/A

Supplier: Restek

Laboratories testing food quality and safety are encouraged to routinely perform proficiency tests. Proficiency testing is an external check of quality. It provides an independent and unbiased assessment of the performance of all aspects of the laboratory, both human and hardware.

Supplier: Restek

607 Nitrosamines calibration mix contains N-nitrosodimethylamine, N-nitroso-di-n-propylamine, N-nitrosodiphenylamine.

Supplier: Restek

Laboratories testing food quality and safety are encouraged to routinely perform proficiency tests. Proficiency testing is an external check of quality. It provides an independent and unbiased assessment of the performance of all aspects of the laboratory, both human and hardware.

Supplier: Restek

DRO mix (Tennessee/Mississippi), 1000 μg/ml each in methylene chloride, Pk Info: 1 ml/ampoule

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.