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- Determination of dyclonine in compound ribavirin ointment by second derivative spectrometry 二阶导数光谱法测定复方利巴韦林软膏中达克罗宁含量
- Keywords the second derivative spectrometry;test;Phenylephrine Hydrochloride Eye Drops; 二阶导数光谱法;盐酸去氧肾上腺素滴眼液;测定;含量;
- Keywords Tongluo Quebi Pill;Radix Aconiti Preparata;Radix Notoginseng;Radix Angelicae Sinensis;aconitine;thin layer chromatography;second derivative spectrometry; 关键词通络袪痹丸;制川乌;三七;当归;乌头碱;薄层色谱;二阶导数光谱;
- second derivative spectrometry 二阶导数光谱法
- Determination of metronidazole content in compound metronidazole gargle by second derivation spectrometry 二阶导数光谱法测定复方甲硝唑漱口液中甲硝唑含量
- Quinestrol in compound preparation was directly determined by using derivative spectrometry. 采用一阶导数光谱法对复方炔诺孕酮片中炔诺孕酮的含量进行了测定。
- The function (f')is usually written simply f" and is called the second derivative. 函数（f’）通常简写成f”，并称之为f的二阶导数。
- The second derivative of LNA, DHA is the most prevalent fat in the brain and nervous system. DHA是由LNA转化的另一种衍生物，人体脑部和神经系统都含大量DHA。
- Quinestrol in compound preparation was determined directly by using second derivative spe ctrometry. 采用二阶导数分光光度法对炔诺孕酮炔雌醚片中炔雌醚的含量进行了测定；
- Be able to apply the first and second derivative tests to analyze the monotonicity and concavity of a function. 能应用导数判定函数的单调性与凹性并利用渐近线协助绘制函数图形。
- The computation precision can be enhanced with the consideration of second deriv ative. 计算结果表明，考虑二阶导数的影响，可以提高计算精度。
- It is computationally expensive and impossible to use optimization means which should compute gradient and Hesse matrix,and the second derivative. 涉及到的求导计算太繁琐,并且需要计算目标函数的二阶导数,所以对这类问题采用含计算梯度或海森矩阵的优化方法是不可行的。
- The determination of clobetasol propionate by the method of second derivative linear sweep adsorptive stripping voltammetry was reported. 本文报道了丙酸氯倍他索的二次导数线性扫描吸附溶出伏安法测定。
- This paper describes a sensitive method for the determination of trace estrogen and androgen by second derivative convolution voltammetry. 二阶导数卷积伏安法应用于水稻中痕量雌雄激素的检测，具有快速、灵敏、干扰少的特点。
- Third order derivative spectrometry 三阶导数光谱法
- The second derivative can partly remove the influence of backgrounds, but it is also limited by the anisotropy of canopy reflectance. 二阶微分方法虽然能部分消除土壤背景的影响，但受冠层反射率非各向同性的限制。
- Second- order derivative spectrometry 二阶导数光谱法
- First order derivative spectrometry 一阶导数光谱法
- Based on the fourth-order difference formula of the second derivative term, a fourth-order finite difference method is developed for solving two-points boundary value problem. 摘要从中心差分公式出发，利用二阶微分的四阶差分公式，对两点边值问题得到了一种四阶精度的差分格式。
- Several kinds of powdered milk were identified fast and nondestructively by Fourier transform infrared spectroscopy (FTIR) combined with second derivative spectra. 采用红外光谱法(FTIR)并结合二阶导数谱对几种奶粉产品进行了无损快速鉴别。
