Hai cercato: Standard
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 re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
3,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 169) 100 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 3,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 169) 100 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',4,5,6'-Heptachlorobiphenyl (PCB No. 174) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5,6'-Heptachlorobiphenyl (PCB No. 174) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',4,5,6-Heptachlorobiphenyl (PCB No. 173) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5,6-Heptachlorobiphenyl (PCB No. 173) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,4',5,5',6-Heptachlorobiphenyl (PCB No. 187) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4',5,5',6-Heptachlorobiphenyl (PCB No. 187) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',5,6'-Hexachlorobiphenyl (PCB No. 135) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',5,6'-Hexachlorobiphenyl (PCB No. 135) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,4,4',5,5',6-Octachlorobiphenyl (PCB No. 203) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4,4',5,5',6-Octachlorobiphenyl (PCB No. 203) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',4,4',5,5'-Hexachlorobiphenyl (PCB No. 153) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',4,4',5,5'-Hexachlorobiphenyl (PCB No. 153) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',5,6,6'-Heptachlorobiphenyl (PCB No. 179) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',5,6,6'-Heptachlorobiphenyl (PCB No. 179) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,4,4',5,6'-Heptachlorobiphenyl (PCB No. 182) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4,4',5,6'-Heptachlorobiphenyl (PCB No. 182) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,4,4',5,6-Heptachlorobiphenyl (PCB No. 181) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4,4',5,6-Heptachlorobiphenyl (PCB No. 181) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',4,4'-Hexachlorobiphenyl (PCB No. 128) 100 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,4'-Hexachlorobiphenyl (PCB No. 128) 100 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',4,5'-Hexachlorobiphenyl (PCB No. 130) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5'-Hexachlorobiphenyl (PCB No. 130) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,3,3',4,4',5,5',6-Octachlorobiphenyl (PCB No. 205) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,3,3',4,4',5,5',6-Octachlorobiphenyl (PCB No. 205) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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(1α,2α,3α,4β,5β,6β)-1,2,3,4,5,6-Esaclorocicloesano 10 µg/ml in soluzione di metanolo
Supplier: LGC Standards PROMOCHEM
Organic Standard, (1α,2α,3α,4β,5β,6β)-1,2,3,4,5,6-Esaclorocicloesano 10 µg/ml in soluzione di metanolo, Tipo di conf.: bottiglia in vetro
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Pharmaceutical Analytical Standard, Biotin for System Suitability, Reference Material
Supplier: EDQM
Biotin is a hydro-soluble vitamin, which helps in the health of skin, nerve, digestive system and also serves as an important cofactor for mammalian carboxylases. It is found within the cells in free and bound pools and assists in releasing energy and metabolism of fats, protein and carbohydrates.
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Glass - trace elements, NIST standards
Supplier: LGC Standards PROMOCHEM
This standard reference material is intended to facilitate the development of chemical methods of analysis for trace elements.
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2,2',3,3',4,5',6,6'-Octachlorobiphenyl (PCB No. 200) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5',6,6'-Octachlorobiphenyl (PCB No. 200) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',4,4',5,5'-Octachlorobiphenyl (PCB No. 194) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,4',5,5'-Octachlorobiphenyl (PCB No. 194) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (PCB No. 208) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (PCB No. 208) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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Low alloy steel standard
Supplier: LGC Standards PROMOCHEM
This reference material is intended for use in the evaluation of chemical and instrumental analysis and in calibration of those methods.
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Standard reference material, strawberry leaves - trace elements
Supplier: LGC Standards PROMOCHEM
This standard is intended for use in development, validation and quality control of analytical methods for the determination of elements in vegetation.
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Wavelength Calibration Solution for ICP-OES
Supplier: CUSTOM MADE CHEMICALS LAB
500 ml solution contains 50 mg/L Al, As, Ba,Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn and 500 mg/L K in 5% HNO₃.
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2,2',3,3',4,4',6,6'-Octachlorobiphenyl (PCB No. 197) 35 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,4',6,6'-Octachlorobiphenyl (PCB No. 197) 35 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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Reference standards, soil, BTEX - Loamy Sand 1, CRM
Supplier: LGC Standards PROMOCHEM
BTEX - Loamy Sand 1, (5 analytes), : N/A
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2,2',3,3',4,4',5,6-Octachlorobiphenyl (PCB No. 195) 100 µg/ml in isooctane
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,4',5,6-Octachlorobiphenyl (PCB No. 195) 100 µg/ml in isooctane, Tipo di conf.: bottiglia in vetro
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Standard di conducibilità 1.000 µS/cm (25°C; 0,007 mol/l; KCl) per la determinazione della conducibilità
Supplier: YSI ENVIRONMENTAL
Standard di conducibilità 1.000 µS/cm (25°C; 0,007 mol/l; KCl), Temperatura di riferimento: 25 °C
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Organic reference standards, cyclazadone (NMIA D914), Certified Reference Material (CRM)
Supplier: LGC Standards PROMOCHEM
The purity value obtained from a combination of traditional analytical techniques is 99,6 ± 1,4% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, thermogravimetric analysis, Karl Fischer analysis and 1H NMR and also supported by elemental microanalysis.
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Standard di conducibilità 10.000 µS/cm (25°C; 0,0765 mol/l; KCl) per la determinazione della conducibilità
Supplier: YSI ENVIRONMENTAL
Standard di conducibilità 10.000 µS/cm (25°C; 0,0765 mol/l; KCl), Temperatura di riferimento: 25 °C
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Standards for formaldehyde-2,4-dinitrophenyl-hydrazone, BCR®
Supplier: LGC Standards PROMOCHEM
Used on glass fibre filters.
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Impurity and API standard, (2S,5R,6R)-6-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid
Supplier: LGC Standards PROMOCHEM
Organic Standard, (2S,5R,6R)-6-[[(2R)-2-[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
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