第一章 初等数学 第二章 解析几何 第三章 线性代数 第四章 微分学 第五章 积分学 第六章 向量与场论初步 第七章 级数 第八章 复变函数 第九章 积分变换 第十章 特殊函数 第十一章 常微分方程 第十二章 偏微分方程 第十三章 积分方程 第十四章 概率论 第十五章 数理统计方法 第十六章 随机过程 第十七章 统计计算方法 第十八章 误分析插值法曲线拟合 第十九章 数值微分·数值积分·积分方程数值解 第二十章 线性方程组的解法·矩阵求逆 第二十一章 方程解法、非线性方程组解法 第二十二章 矩障特征值的计算 第二十三章 常微分方程数值解法 第二十四章 偏微分方程的有限差分方法 第二十五章 偏微分方程的有限元方法及其他方法 第二十六章 离散数学 第二十七章 模糊数学 第二十八章 组合数学 第二十九章 现代控制论 第三十章 信息论 第三十一章 系统工程

N-methylcarbamate insecticide residues, including carbamate metabolites, are ex￾tracted with methanol. The extract is cleaned up by partitioning and column chromatography on a charcoal/Celite column. Residues are selectively determined

Pesticide multiresidue methods (MRMs) are capable of simultaneously determin￾ing more than one residue in a single analysis; this multiresidue capability is provided by a GLC or HPLC determinative step that separates residues from one another before detection. The MRM concept is raised to a higher dimension when a single extract is examined with more than one chromatographic determinative

The expressed purpose of the Pesticide Analytical Manual is to publish analytical methodology used by the FDA in enforcing pesticide tolerances. To understand FDA’s application of methodology published in the manual, it is important to

Recovery of Chemicals Through Method 401 (E1-E2 + C1 + DL1) (methanol extraction, cleanup with partitioning and charcoal/Celite column, HPLC with post-column derivatization and fluorescence detection)

Caution: Use this table only as a quick reference for tentative identification of residues found in samples analyzed by the most com￾monly used PAM I multiresidue methods. Always compare the residue to a standard chromatographed in your own gas chromatograph

Transmittal No. 96-E1 (9/96) Form FDA 2905a (6/92) INDEX: METHODS–1 Pesticide Analytical Manual Vol. I INDEX: METHODS Index to PAM I Methods, by Chemicals Tested for Recovery Codes: C: complete (recovery); P: partial; S: small; V: variable; R: recovered; NR: not recovered

Multiresidue methodology by definition requires determinative steps capable of separating analytes from one another so each can be detected and measured individually. Both gas-liquid chromatography (GLC) and high performance liquid

Food quality, including colour, texture, flavour and nutritional value, is of key importance in the context of food preservation and processing. Colour, texture and flavour refer to consumption quality, purchase and product acceptability whereas the nutritive values (i.e. vitamin content, nutrients, minerals, health￾related food components) refer to hidden quality aspects. In conventional thermal processing, process optimisation consists of reducing the severity of the thermal process in terms of food quality destruction without compromising food safety

Preventing the loss of vitamins and nutrients in foods is a paramount concern at all stages of food processing involving heating. One example of the critical need for retaining vitamins is to nourish hospital patients who require vitamins to recover from the stress of illness or surgery.1 This issue has invoked recent studies