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.
Supelco® TraceCERT® Organic Reference Standard, 2-Methylthiophene
Supplier: Merck
Organic Standard, 2-Methylthiophene
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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.
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Supelco® Drug and metabolite standards, Imipramine-D3 maleate solution, (CRM)
Supplier: Merck
Organic Standard, Imipramine-D3 maleate solution, ampoule of 1 ml
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Supelco® Organic Reference Standard, EPA TCL Base/Neutrals Mix 2
Supplier: Merck
Organic Standard, EPA TCL Base/Neutrals mix 2
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Mercury on Filter Paper, Proficiency Testing Material, Supelco®
Supplier: Merck
Mercury on Filter Paper, Supelco®, Proficiency Testing Material, : N/A
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Organic reference standard, 1-Hexanethiol, analytical standard, Supelco®
Supplier: Merck
Organic Standard, 1-Hexanethiol, ≥98,0% (GC)
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Supelco® Drug and metabolite standards, Pregnenolone-13C2,D2 solution, (CRM)
Supplier: Merck
Organic Standard, Pregnenolone-13C2,D2 solution, ampoule of 1 ml
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Supelco® PESTANAL® Organic Reference Standard, Dimethachlor Metabolite SYN 530561
Supplier: Merck
Organic Standard, Dimethachlor Metabolite SYN 530561
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Supelco® PESTANAL® Organic Reference Standard, 4,4′-DDMU
Supplier: Merck
Organic Standard, 4,4′-DDMU
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Trimethyl phosphate solution, NMR reference standard, Supelco®
Supplier: Merck
Organic Standard, Trimethyl phosphate solution, NMR tube size 5 mm x 7 in.
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Supelco® Drug and metabolite standards, Carisoprodol-13C3 solution, (CRM)
Supplier: Merck
Organic Standard, Carisoprodol-13C3 solution, ampoule of 1 ml
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Supelco® PESTANAL® Organic Reference Standard, Chlorbenside Sulfone
Supplier: Merck
Organic Standard, Chlorbenside sulfone
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Supelco® Organic Reference Standard, gamma-Terpinene solution
Supplier: Merck
Organic Standard, gamma-Terpinene solution, Ampule of 1 ml
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Drug and metabolite standards, EDDP perchlorate, (CRM), Supelco®
Supplier: Merck
Organic Standard, EDDP perchlorate, ampule of 10 mg
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Supelco® Organic Reference Standard, Tin-Base Solder (Lead Free)
Supplier: Merck
Organic Standard, Tin-base solder (lead free)
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Supelco® PESTANAL® Organic Reference Standard, Orbencarb
Supplier: Merck
Organic Standard, Orbencarb
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#: 20864.320
Dostawca: VWR Chemicals
#: 83640.320
Dostawca: VWR Chemicals
#: 31770.294
Dostawca: VWR Chemicals
#: 1.00030.2500
Dostawca: Merck
#: 83645.320
Dostawca: VWR Chemicals