reference substance

British Pharmacopoeia method is more accurate because of its using the reference substance as a calibration.

英国药典方法更为可靠，关键是采用了标准品进行校正计算。

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Reference substance is a chemical substance that is usually used in chemical analysis.

对照品是化学分析中常用的物质.

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The Selection of the Reference Wavelength of Spectra Absorption Curve of Yellow Substance

探讨黄色物质吸收曲线参考波长选择

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OBJECTIVE To establish a preparation method for working reference substance of alliin.

目的建立蒜氨酸工作对照品。

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Using rutin as a reference substance to develop a quantitative method for the determination in different sections of total flavonoid in Blumea balsanifera DC.

以芦丁为对照品，建立紫外分光光度法检测艾纳香总黄酮含量的方法，并检测艾纳香中不同部位总黄酮的含量。

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Infrared identification method shows that the infrared spectroscopic test result of the test article and that of the reference substance are basically the same, with no significant difference.

红外鉴别法供试品与对照品的图谱基本一致，无显著性差异，表明供试品与对照品是同种物质。

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CONCLUSION: The main components of CMGC, metformin and glibenclamide, are bioequivalent to the reference tablets, MT and GT. OBJECTIVE: To establish a HPLC method for the determination of foreign substance dicyanodiamide in com ˉ pound metformin and glibenclamide tablets.

结论：复方二甲双胍胶囊中二甲双胍和格列本脲与参比药相比皆生物等效目的：建立以高效液相色谱法测定复方二甲双胍格列本脲片中杂质双氰胺含量的方法。

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Preparation, homogeneity, stability and certification of reference substance of bornyl acetate were studied.

研究了乙酸龙脑酯标准样品的制备 、 均匀性和稳定性及其定值方法.

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First, the synthesis of asarone reference substance was as a research activity, Second, the aromatic ketone was synthesized by Friedel-Crafts reaction, Meanwhile, the synthesis of 2,4,5-trimethoxy benzaldehyde used as intermediates.

首先合成α-细辛醚作为研究活性的对照品，其次通过傅克反应合成一系列的芳香酮，同时合成2,4,5-三甲氧基苯甲醛作为中间体。

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The correlation coefficient for the thebaine was greater than 0.999 2. The average rate of recovery for the reference substance was 100.08% and the relative standard deviation was 0.48%.

样品中蒂巴因的平均回收率为100.08%，RSD为0.48%。

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Results: ① Rhizoma Bistortae 、 Cortex Magnoliae Officinalis 、 Rhizoma Imperatae have same colour spots on the same location according the reference substance and the negative samples have no interference.

结果：①拳参、厚朴、白茅根与相应标准品在薄层色谱相同位置上显相同颜色的斑点，阴性样品均无干扰。

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Simultaneous determination by HPLC of 6 components in zedoary turmeric oil and its related injections with replacement method of chemical reference substance

HPLC替代对照品法同时测定莪术油及其注射液中6种成分的含量

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Methods: With acteoside as the reference substance, fingerprint chromatograph for methanol extraction of Cistanche deserticola were established by HPLC.

方法：以麦角甾苷为参照物，用HPLC方法建立肉苁蓉甲醇提取物的指纹图谱。

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Calibration curves of both the deputy reference substance and lidamycin chromophore were determined by HPLC and the slope ratio of these two curves was defined as a calibration factor, which could represent the ratio of the two mole ultraviolet absorption coefficients.

通过HPLC测定表征性参比物质与力达霉素发色团的标准曲线，以其斜率的比值表征二者的摩尔紫外吸收系数比值，并作为校正因子；

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Synthetic α-Asarone as a reference substance is used as insecticidal activity.

以合成的α-细辛醚作为杀虫活性的对照品。

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