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.
Tripentyltin chloride surrogate
Supplier: Restek
Tripentyltin chloride, 2000 μg/ml in methylene chloride, : N/A, 1 ml/ampul
Expand 1 Items
Hard Drinking Water UK Low Level Metals
Supplier: LGC Standards PROMOCHEM
Hard drinking water UK low level metals, : N/A
Expand 1 Items
EPA method 8310 PAH mixture
Supplier: Restek
EPA method 8310 PAH mixturecontain 18 components.
Expand 1 Items
DNPH reference materials
Supplier: Restek
The reported concentrations reflect the amount of aldehyde or ketone in the mixture.The concentration of derivatised aldehyde or ketone is not reported.
Expand 3 Items
MA fractionation surrogate spike mix (2 components)
Supplier: Restek
This MA fractionation surrogate spike mix contains two components: 2-Bromonaphthalene and 2-Fluorobiphenyl.
Expand 1 Items
TNRCC 1005 retention time marker mix (9 components)
Supplier: Restek
This TNRCC 1005 retention time marker mix used during initial sample screening to determine retention time windows for each petroleum product.
Expand 1 Items
CLP 04.1 BNA surrogate mix (8 components)
Supplier: Restek
The mix consists of components such as 2-chlorophenol-d4 (1500 μg/ml), 1,2-dichlorobenzene-d4 (1000 μg/ml), 2-fluorobiphenyl (1000 μg/ml), 2-fluorophenol (1500 μg/ml), nitrobenzene-d5 (1000 μg/ml).
Expand 1 Items
PFTBA (MS tuning compound)
Supplier: Restek
This contains perfluorotributylamine (PFTBA).
Expand 1 Items
California oxygenates mix (5 components)
Supplier: Restek
The california oxygenates mix consists of five components they are tert-amyl methyl ether (TAME) 2000 μg/ml, tert-butanol (TBA) 10000 μg/ml, diisopropyl ether (DIPE) 2000 μg/ml, ethyl-tert-butyl ether (ETBE) 2000 μg/ml and methyl tert-butyl ether (MTBE) 2000 μg/ml.
Expand 1 Items
Alaska UST method AK101AA
Supplier: Restek
The alaska UST method consists of 14 components they are benzene, ethylbenzene, 1-ethyl-2-methylbenzene, 1-ethyl-3-methylbenzene, 1-ethyl-4-methylbenzene, isopropylbenzene (cumene), n-propylbenzene, toluene, 1,2,3-trimethylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, m-xylene, o-xylene and p-xylene.
Expand 1 Items
NIST® SRM® Trace Elements in Water
Supplier: Merck
Each unit of SRM 1643F consists of a polyethylene bottle containing ~250 ml of acidified water, sealed within an aluminized plastic bag to maintain stability. The SRM simulates the elemental composition of fresh water. The solution contains nitric acid at a volume fraction of ~2%, equivalent to an amount of substance concentration (molarity) of nearly 0,32 mol/L.
Expand 1 Items
Isocyanates singles
Supplier: Restek
OSHA 47 is for 4,4'-methylenediphenyl isocyanate (4,4'-MDI) in indoor air, and NIOSH Method 5522 is for 2,4-TDI; 2,6-TDI; 4,4'-MDI; and 1,6-hexamethylene diisocyanate (1,6-HDI) in air. Restek offers the 1,-(2-pyridyl)piperzine (1-2pp) derivative.
Expand 4 Items
62,4 mg/ml CuSO₄.5H₂O
Supplier: CPACHEM
The colour standard is specially intended for use in testing ChP and monographs. This solution was produced according to the specifications using ChP reagent quality components and water meeting the ChP monograph requirement for purified water.
Expand 1 Items
Calibration check mix, 8270 acid (6 components)
Supplier: Restek
Calibration check mix, 8270 acid, 2000 µg/ml each in methylene chloride, : N/A, 1 ml/ampoule
Expand 1 Items
8040 Surrogate mix (2 components)
Supplier: Restek
8040 Surrogate mix contains 2-fluorophenol, 2,4,6-tribromophenol.
Expand 1 Items
MA EPH surrogate spike mix (2 components)
Supplier: Restek
This spike mix contains two components: 1-Chlorooctadecane and o-Terphenyl.
Expand 1 Items
BNA Surrogates Mixture
Supplier: EHRENSTORFER
Stable isotope labelled product type, mixture format, dichloromethane solvent.
Expand 1 Items
606 Phthalate esters calibration mix (6 components)
Supplier: Restek
Calibration mix contains Bis(2-ethylhexyl)phthalate, benzyl butyl phthalate, di-n-butyl phthalate, diethylphthalate, dimethylphthalate, di-n-octyl phthalate.
Expand 1 Items
WA EPH aliphatic hydrocarbon mix (6 components)
Supplier: Restek
The mix consists of, (C8) n-octane, (C10) n-decane, (C12) n-dodecane, (C16) n-hexadecane, (C21) n-heneicosane, (C34) n-tetratriacontane.
Expand 1 Items
B/N Matrix spike mix, 6 components
Supplier: Restek
Base/neutral matrix spike mix, includes acenaphthene, N-nitroso-di-n-propylamine, 1, 4-dichlorobenzene, pyrene, 2, 4-dinitrotoluene, 1, 2, 4-trichlorobenzene, 1000 µg/ml each, : N/A, Matrix: MeOH, 1 ml/ampoule
Expand 8 Items
8270 calibration mix #1 (19 components)
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); 2,6-Dichlorophenol (87-65-0); 2,4-Dimethylphenol (105-67-9); 4,6-Dinitro-2-methylphenol (Dinitro-o-cresol) (534-52-1); 2,4-Dinitrophenol (51-28-5); Dinoseb (88-85-7); 2-Methylphenol (o-cresol) (95-48-7); 3-Methylphenol (m-cresol) (108-39-4); 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); 2,3,4,6-Tetrachlorophenol (58-90-2); 2,4,5-Trichlorophenol (95-95-4); 2,4,6-Trichlorophenol (88-06-2)
Expand 1 Items
Certified reference materials for environmental analysis, IRMM BCR®
Supplier: LGC Standards PROMOCHEM
White cabbage (Trace elements), : N/A
Expand 3 Items
ORP electrode solutions
Supplier: SI Analytics
ORP electrode solutions are used as cleaning solutions for combination electrodes and reference electrodes.
Expand 5 Items
Pesticide surrogate mix (2 components)
Supplier: Restek
Contains two components, those are decachlorobiphenyl and 2,4,5,6-tetrachloro-m-xylene.
Expand 1 Items
Diesel #2/Motor Oil (2 components)
Supplier: Restek
Diesel fuel #2 composite and Motor oil.
Expand 1 Items
Atlantic RBCA EPH mix (11 components)
Supplier: Restek
Atlantic RBCA VPH mix, 1000 µg/ml each in hexane:methylene chloride (85:15%), : N/A, 1 ml/ampoule
Expand 1 Items
Method 1664 oil and grease mix (2 components)
Supplier: Restek
Contains two components, those are n-hexadecane and stearic acid.
Expand 1 Items
MA Fractionation check mix (31 components)
Supplier: Restek
This MA fractionation check mix ideal for underground storage tank monitoring.
Expand 1 Items
WA EPH aromatic hydrocarbon mix (6 components)
Supplier: Restek
The mix consists of, (C8) n-octane, (C10) n-decane, (C12) n-dodecane, (C16) n-hexadecane, (C21) n-heneicosane, (C34) n-tetratriacontane.