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Merck

HPLC Analysis of Benzodiazepines on Ascentis® Express Phenyl-Hexyl, Methanol Mobile Phase

HPLC Analysis of Benzodiazepines on Ascentis® Express Phenyl-Hexyl, Methanol Mobile Phase application for HPLC

材料

分析柱

產品號碼
描述
訂價

53348-U

Ascentis® Express Phenyl-Hexyl，2.7μm HPLC色谱柱

2.7 μm particle size, L × I.D. 5 cm × 4.6 mm

標準品

產品號碼
描述
訂價

D7282

去甲西泮

analytical standard

O-902

奥沙西泮标准液 溶液

1 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

A-903

阿普唑仑标准液 溶液

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

C-907

氯硝西泮标准液 溶液

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

D-907

地西泮标准液 溶液

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

CONDITIONS

column

Ascentis Express Phenyl-Hexyl, 5 cm x 4.6 mm I.D., 2.7 μm particles (53348-U)

mobile phase

[A] water; [B] methanol; (35:65, A:B)

flow rate

1.4 mL/min

pressure

3600 psi (248 bar)

column temp.

35 °C

detector

UV, 250 nm

injection

2 μL

sample

0.1 g/L in 20% methanol

描述

分析報告

The Phenyl-Hexyl phase of the Ascentis Express product line displays the best selectivity of this sample; selectivity is markedly affected by choice of organic modifier. The application also demonstrates feasibility of fast LC with Ascentis Express by virtue of low backpressure and high efficiency.

法律資訊

Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany

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Related Applications

Small Molecule HPLCLarge Molecule HPLCGas Chromatography (GC)TLCSolid Phase Microextraction (SPME)Solid Phase Extraction (SPE)QuEChERS