An HPLC Analytical Method for Simultaneous Determination of 14 Kinds of Vitamins
A high-performance liquid chromatography and analysis method technology, which can be applied to measurement devices, analysis materials, material separation, etc., can solve the problems of incomplete detection of vitamin types, cumbersome and time-consuming operations, etc. Easy to use effect
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[0043] In order to make the object, technical solution and beneficial effect of the present invention clearer, preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0044] 1. Content determination method
[0045] 1. Chromatographic conditions
[0046] Chromatographic column: C18 chromatographic column (250mm×4.6mm, 5µm);
[0047] Mobile phase and elution method: use 0.1M sodium acetate solution as mobile phase A, methanol as mobile phase B, and perform gradient elution according to the following procedure:
[0048] 0-4min: mobile phase is mobile phase A-mobile phase B (volume ratio 95: 5);
[0049] 4-10min: The mobile phase changes linearly from mobile phase A-mobile phase B (volume ratio 95:5) to mobile phase A-mobile phase B (volume ratio 55:45);
[0050] 10-18min: The mobile phase changes linearly from mobile phase A-mobile phase B (volume ratio 55: 45) to mobile phase A-mobile phase B (volume ra...
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