First order derivative spectrophotometry 一阶导数分光光度法
The first order derivative spectorphotometry 一阶导数光谱法
first-order derivative terms 一阶导数项
the first order derivative spectrophotometry 采用一阶导数
First order derivative spectrophotomatry 一阶导数光谱法
first order derivative uv 一阶导数
first order derivative spectra 一阶导数光谱法
first-order derivative spectrum 一阶导数光谱法
The content of etoposide injection was determined by first order derivative spectrophotometry.
用一阶导数光谱法测定足叶乙甙注射液的含量。
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：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。
The determination of norfloxacin in compound norfloxacin ear drops by first order derivative UV spectrophotometry needed no separation and was simple, rapid, and accurate.
采用一阶导数分光光度法测定复方滴耳液中诺氟沙星的含量，样品不须分离，方法简便，结果满意。
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