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Chromatography Standards

Frequently used for calibration, chromatography standards have a known concentration to test separating equipment for performance faults.
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2,341 – 2,355 of 23,180 results
2,342

PESTANAL™ Mefenpyr-diethyl, MilliporeSigma™ Supelco™

Mefenpyr-diethyl is a herbicide safener, used for post emergence control of selective grass weeds affecting crops such as wheat, rye and spring barley.

2,343

Octanal, ≥98.0% (GC), MilliporeSigma™ Supelco™

Boiling Point 171°C
Linear Formula CH3(CH2)6 CHO
Physical Form Neat
Grade Analytical Standard
Density 0.82 g/mL (at 25°C)
Vapor Pressure 2 mmHg (20°C)
Type Analytical Standard
Percent Purity ≥98.0% (GC)
CAS 124-13-0
MDL Number MFCD00007029
Flash Point 52°C
Synonym Aldehyde C8; Caprylic aldehyde; Octyl aldehyde
RTECS Number RG7780000
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 128.21
Melting Point 12°C to 15°C
2,344

3-Methylpentane, ≥99.5% (GC), MilliporeSigma™ Supelco™

Boiling Point 64°C
Linear Formula (CH3 CH2)2 CHCH3
Physical Form Neat
Grade Analytical Standard
Ignition Point 532°F
Density 0.664 g/mL (at 25°C)
Vapor Density 2.97 (vs. air)
Vapor Pressure 135 mmHg (17°C)
Type Analytical Standard
Percent Purity ≥99.5% (GC)
CAS 96-14-0
MDL Number MFCD00009342
Flash Point -7°C - closed cup
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 86.18
2,346

Ethylbenzene Solution, NMR Reference Standard, NMR Tube Size: 5 mm 8 in., MilliporeSigma™ Supelco™

0.1% in chloroform-d (99.8 atom % D), chromium(III) acetylacetonate 0.1 mg/mL, TMS 0.01%

2,349

Bromide Standard, For IC, 1,000 mg/L Bromide in H2O, MilliporeSigma™ Supelco™

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034 (ISO Guide 34). This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST or BAM.

2,350

N-Nitrosodimethylamine, Certified Reference Material, MilliporeSigma™ Supelco™

Pharmaceutical secondary standards for application in quality control. Provides pharma laboratories and manufacturers with a convenient, and cost-effective alternative to the preparation of in-house working standards.

2,353

Ethyl acetate, Analytical Standard, ≥99.9% (GC), MilliporeSigma™ Supelco™

Ethyl acetate may be used as an extractant solvent in the analysis of moxalactum in serum samples using high performance liquid chromatography (HPLC).