Determination of lecithin drug specialties and diet integrators; by means of first or second derivative enzymatic-spectrophotometric analysis

被引：15

作者：

Campanella, L ^{[1
]}

Magri, AL ^{[1
]}

Sorbo, A ^{[1
]}

Tomassetti, M ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy

来源：

JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS | 2002年 / 29卷 / 06期

关键词：

lecithin; analysis; spectrophotometric; derivative method;

D O I：

10.1016/S0731-7085(02)00155-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The possibility has been investigated of applying derivative analysis to a classical enzymatic-spectrophotometric method for lecithin determination for the purpose of developing an analytical direct method that does not require long pretreatment of the test sample even in the case of turbid samples. Several samples of drugs and food integrators containing lecithin were thus tested using both the standard and the derivative method and then comparing the results obtained. The RSD% values of measurements on real (food or drugs) samples were always < 2.5. Using a first derivative spectrophotometric method. average recovery was always between 102 and 105%. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1135 / 1148

页数：14

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