Method for simultaneously measuring content of six ingredients in canarium pimela leenh. leaves
A technology of black olive leaf and content, which is applied in the directions of measuring devices, material separation, and analysis of materials, can solve the problems of simultaneous determination of high performance liquid chromatography and other problems in unpublished records, and achieves high detection precision and accuracy, high separation efficiency, good repeatability
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Embodiment 1
[0035] 1 Sample solution preparation
[0036] Dry and crush the olive leaves, and pass through a No. 2 sieve. Accurately weigh 0.5g of black olive leaf powder in a stoppered Erlenmeyer flask, accurately add 50mL of 50% methanol aqueous solution (V / V), soak in the plug for 30min, then ultrasonicate for 30min, let stand to cool, and weigh. Add 50% aqueous methanol (V / V) to make up for weight loss, shake well, and filter. Take the filtrate and pass it through a 0.22 μm microporous membrane to obtain the sample solution.
[0037] 2. Preparation of reference solution
[0038] Accurately weigh the appropriate amount of chlorogenic acid, vitexin, isovitexin, hyperoside, rutin and quercetin reference substance, add 50% methanol aqueous solution (V / V) to ultrasonically dissolve, shake to a constant volume, that is A mixed reference solution was obtained.
[0039] 3. Chromatographic conditions
[0040] The chromatographic column is Agilent Zorbax SB-C 18 (250*4.6mm, 5μm); the flow...
Embodiment 2
[0077] Using the high-performance liquid chromatography method described in the present invention, the six components of chlorogenic acid, vitexin, isovitexin, hyperoside, rutin and quercetin in 10 batches of olive leaves were simultaneously Determination.
[0078] The experimental results are shown in Table 7:
[0079]
[0080] The test results showed that the relative content of chlorogenic acid components in black olive leaves was the highest. Different batches of black olive leaves contained six components of chlorogenic acid, vitexin, isovitexin, hyperin, rutin and quercetin. The content of each ingredient varies. The invention establishes a simple and effective content determination method, which is beneficial to better control the quality of black olive leaves and provides test basis for its further development.
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