用双波长、差示、一阶导数分光光度法，建立了一种测定外源物体外代谢时一氧化碳(CO)生成量的新方法。
A double wavelength-differential-first order derivative spectrophotometric assay was established to determine carbon monoxide (CO) generation during in vitro metabolism of xenobiotics.
目前，红细胞边缘形态的检测一般都是利用传统的边缘检测方法，如边缘临近一阶或二阶方向导数法，利用简单的方法来检测边缘。
At present, the methods of edge detection of erythrocyte are using traditional theory such as edge one-order or second-order orient differential coefficient and using simple methods to detect edge.
方法：采用一阶导数分光光度法和双波长光谱法测定各配伍液中头孢噻肟钠和西咪替丁的含量。
METHODS: to test the contents of cefotaxime sodium and cimetidine in all kinds of infusions using first order derivative and double wavelength spectrophotometry.
方法一阶导数分光光度法。
本文采用一阶导数紫外分光光度法直接测定注射用苯妥英钠的含量。
The Content of phenytoin sodium (for injection) was determined directly by the first order derivative spectrophotometry.
方法：采用一阶导数分光光度法。
METHODS: The first order derivative spectrophotometry was used.
方法用一阶导数光谱法半振幅进行定量。
Methods a first order derivate spectrophotometer was selected to determine the content.
方法：采用一阶导数分光光度法进行含量测定。
Method: The content of fluconazole in gel was measured by first order derivative spectrophotometry.
以盐酸为溶剂，N乙酰基D葡萄糖胺为标准品，用紫外一阶导数光度法直接测定壳聚糖的脱乙酰度。
The degree of deacetylation of chitosan was determined directly by 1st derivative UV spectrophotometry using hydrochloric acid as solvent and N acetyl D glucosamine (ACGLSM) as standard.
对于一阶导数间断的物理量——气膜厚度采用高精度保凸性磨光法进行处理。
Smoothest approximation method, with high precision and capacity of keeping concave and convex feature of original outlines, is used to deal with the derivative discontinuity of gas film thickness.
梯度法检测边缘通过寻找最大和最小的图像一阶导数。
The gradient method detects the edges by looking for the maximum and minimum in the first derivative of the image.
梯度法检测边缘通过寻找最大和最小的图像一阶导数。
The gradient method detects the edges by looking for the maximum and minimum in the first derivative of the image.
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