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The technology of amygdalin and determination method is applied in the field of laboratory testing, which can solve the problems of complex pharmacopoeia operation process and high requirements for operators' operating skills, and achieve the effects of short test time, good repeatability and consistent accuracy
Inactive Publication Date: 2016-09-07
WUZHOU INST FOR FOOD & DRUG CONTROL
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[0004] The operation process of the method in the Pharmacopoeia is complicated and requires high skills of the operator
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Embodiment 1
[0038] Grind the peach kernels through a pulverizer, pass through a No. 3 sieve, weigh about 0.3g, accurately weigh, mix evenly with 1g of quartz sand, set aside, and transfer to a pre-placed glass fiber filter. Add an appropriate amount of quartz sand to the 5ml extraction pool, shake gently to make it on the same level as the pool mouth, and tighten the upper cover of the extraction pool. After the extraction, the extract was transferred to a 50ml volumetric flask, diluted to the mark with 70% methanol, centrifuged at 15000r / min for 3min, and the supernatant was taken for LC determination.
[0039] The extraction conditions (see table 1) are:
[0040] Table 1
[0041]
[0042] 70% methanol refers to the volume percentage of methanol in methanol aqueous solution at 20°C.
[0044] a) Instrument: Thermo double ternary liquid phase (U-3000);
[0045] b) Chromatographic column...
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Abstract
The invention discloses a determination method for amygdalin in a peach seed. The method comprises the following steps: step 1, crushing the peach seed and then extracting the crushed peach seed by using an ASE extraction method so as to obtain extract; step 2, subjecting the extract to centrifugation so as to obtain supernatant; and step 3, analyzing the supernatant by using liquid chromatography. The determination method for amygdalin in the peach seed is simple to operate and high in detection precision.
Description
technical field [0001] The invention relates to the field of laboratory testing, in particular to a method for determining amygdalin in peach kernels. Background technique [0002] The 2015 Pharmacopoeia recorded the method of extracting amygdalin from peach kernels: Take about 0.3g of the coarse powder of this product, weigh it accurately, put it in a stoppered conical flask, add 50ml of petroleum ether (60-90°C), and heat to reflux for 1 hour , let cool, filter, discard the petroleum ether liquid, dregs and filter paper to evaporate the solvent, put it into the original Erlenmeyer flask, accurately add 50ml of 70% methanol, weigh it, heat and reflux for 1 hour, let it cool, and weigh again Determine the weight, make up the lost weight with 70% methanol, shake well, and filter. Precisely measure 5ml of the continued filtrate, put it in a 10ml measuring bottle, add 50% methanol to the mark, shake well, and you get it. Centrifuge at 15000r / min for 3min, take the supernatant...
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