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HPLC Analysis of 25-Hydroxyvitamin D3 and epi-25-Hydroxyvitamin D3 on Ascentis® Express F5

HPLC Analysis of 25-Hydroxyvitamin D3 and epi-25-Hydroxyvitamin D3 on Ascentis® Express F5 application for HPLC

材料

分析色谱柱

产品编号
说明
价格

53569-U

Ascentis® Express F5, 2.7 μm HPLC 色谱柱

2.7 μm particle size, L × I.D. 10 cm × 2.1 mm

标准

产品编号
说明
价格

705993

3-表-25-羟基维生素 D3

98% (CP)

H-083

25-羟基维生素D3标准液 CRM 溶液

100 μg/mL in ethanol, ampule of 1 mL, certified reference material, Cerilliant®

流动相组分

产品编号
说明
价格

70221

甲酸铵

eluent additive for LC-MS, LiChropur™, ≥99.0%

CONDITIONS

column

Ascentis Express F5, 10 cm x 2.1 mm I.D., 2.7 μm particles (53569-U)

mobile phase

[A] 7 mM ammonium formate; [B] methanol; (25:75, A:B)

flow rate

0.4 mL/min

column temp.

40 °C

detector

UV, 265 nm

ESI(+), m/z 100 - 1000

injection

1 μL

sample

300 mg/L in 25:75, water:methanol

说明

法律信息

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

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