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7299 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.

Standards for water pollution QC check, inorganics, VHG

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a quality control check for methods related to measurements of inorganic materials includes conductivity, alkalinity as CaCO₃, chloride, fluoride, nitrite and nitrate, sulphate, potassium, sodium, total dissolved solids and many more.

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Standards for portable colorimeters, CAL Check™

Supplier: Hanna

CAL Check™ Standard for pH/free Chlorine/total Chlorine, CAL Check™, : N/A

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Aluminium standard solution, for ICP, in 5% HNO₃, VHG

Supplier: LGC Standards PROMOCHEM

The solutions are intended for use as a certified reference material or calibration standard for inductively coupled plasma optical emission spectroscopy (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), flame or furnace atomic absorption spectroscopy (AA or GFAA), x-ray fluorescence spectroscopy (XRF), and other techniques for elemental analysis.

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Pesticide reference standard, 1,2,3-Trichloropropane 1000 µg/ml in methanol, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 1,2,3-Trichloropropane 1,000 µg/ml in methanol, Pack type: Glass bottle

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Organic reference standard, 4-Chlorobiphenyl (PCB No. 3) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 4-Chlorobiphenyl (PCB No. 3) 100 µg/ml in isooctane, Pack type: Glass bottle

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Metal alloy standards, low-alloy steel, NIST, CRM

Supplier: LGC Standards PROMOCHEM

LA steel (A242) (mod.), NIST-C1285

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Potassium standard solution, for ICP, in 5% HNO₃, VHG

Supplier: LGC Standards PROMOCHEM

The solutions are intended for use as a certified reference material or calibration standard for inductively coupled plasma optical emission spectroscopy (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), flame or furnace atomic absorption spectroscopy (AA or GFAA), x-ray fluorescence spectroscopy (XRF), and other techniques for elemental analysis.

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Pesticide reference standard, 1,2-Dichlorobenzene 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 1,2-Dichlorobenzene 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, Dipentyl phthalate 100 µg/ml in n-nonane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, Dipentyl phthalate 100 µg/ml in n-nonane, Pack type: Glass bottle

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Pesticide reference standard, 1,4-Dichloronaphthalene 100 µg/ml in n-nonane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 1,4-Dichloronaphthalene 100 µg/ml in n-nonane, Pack type: Glass bottle

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Organic reference standard, Methylphosphonic acid 1,000 µg/ml in methanol, Cerilliant

Supplier: LGC Standards PROMOCHEM

Organic Standard, Methylphosphonic acid 1,000 µg/ml in methanol, Pack type: Glass bottle

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DNPH standards, organotin mixtures, CERTAN®

Supplier: LGC Standards PROMOCHEM

These selected organotin compounds are determined by gas chromatography using DIN 38407-F13.

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Aluminium standard solution, for ICP, in 5% HCl, VHG

Supplier: LGC Standards PROMOCHEM

The solutions are intended for use as a certified reference material or calibration standard for inductively coupled plasma optical emission spectroscopy (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), flame or furnace atomic absorption spectroscopy (AA or GFAA), x-ray fluorescence spectroscopy (XRF), and other techniques for elemental analysis.

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Organic reference standard, mussel tissue, NIST SRM 1974C

Supplier: LGC Standards PROMOCHEM

This reference standard is intended for use in evaluating analytical methods for the determination of selected polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyl (PCB) congeners, chlorinated pesticides and polybrominated diphenyl ether (PBDE) congeners in marine bivalve mollusk tissue and similar matrices.

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Organic reference standard, 1,2-Dichloroethane 5000 µg/ml in methanol

Supplier: LGC Standards PROMOCHEM

Organic Standard, 1,2-Dichloroethane 5,000 µg/ml in methanol, Pack type: Glass bottle

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Boric acid isotopic standard, NIST-951A

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended for use as an isotopic reference material for the calibration of mass spectrometers. The material consists of highly purified boric acid of high homogeneity.

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Organic reference standards, oxaliplatin, Ph. Eur. RS

Supplier: EDQM

Organic Standard, Oxaliplatin impurity D, (SP-4-2)-[(1S,2S)-cyclohexane-1,2-diamine-κN,κN'][ethanedioato(2-)-κO1,κO2]platinum (S,S-enantiomer of oxaliplatin)

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Impurity and API standard, 1,1'-[4,4'bis(methoxy)biphenyl-3,3'-diyl]bis(tricyclo[3.3.1.13,7]decane)

Supplier: LGC Standards PROMOCHEM

Organic Standard, 1,1'-[4,4'Bis(methoxy)biphenyl-3,3'-diyl]bis(tricyclo[3.3.1.13,7]decane)

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COD standard solutions

Supplier: WTW

COD standard solution, volume: 30 ml, model: SL COD 400, 400 mg/l, : N/A

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Elemental analysis standards, brick clay - constituents, NIST-679

Supplier: LGC Standards PROMOCHEM

Brick clay - constituents, : N/A

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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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Reference Materials, Matrix Modifiers for GFAA, CRM, VHG, Promochem

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a matrix modifier for graphite furnace atomic absorption spectroscopy (GFAA) in the determination of trace elements.

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Reference standards, PAH mixture 15

Supplier: LGC Standards PROMOCHEM

According to EU recommendation about the determination of carcinogenic PAHs in food (2005/108/EC) .

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Organic reference standard, 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 167) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 167) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4',5,6,6'-Heptachlorobiphenyl (PCB No. 188) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4',5,6,6'-Heptachlorobiphenyl (PCB No. 188) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4',5,6'-Hexachlorobiphenyl (PCB No. 148) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4',5,6'-Hexachlorobiphenyl (PCB No. 148) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,5,5',6'-Octachlorobiphenyl (PCB No. 201) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,5,5',6'-Octachlorobiphenyl (PCB No. 201) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,4',5,6'-Hexachlorobiphenyl (PCB No. 154) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,4',5,6'-Hexachlorobiphenyl (PCB No. 154) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standards, α-zearalenol (NMIA P1795)

Supplier: LGC Standards PROMOCHEM

Purity estimate obtained by subtraction from 100% of total impurities by GC-FID, thermogravimetric analysis, Karl Fischer analysis and 1H NMR is 99,1 ± 1,4% mass fraction, (95% coverage interval). Supporting evidence is provided by elemental microanalysis.

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