发现了用PVB甲醇溶液测定冻胶化温度较乙醇溶液更灵敏。
To use PVB methanol solution to test its gelling temperature is more sensitive than to use PVB ethanol solution.
加入标准溶液测定方法的回收率,消解条件对测定结果有影响。
Adding standard solution in the samples, the recovery ratio is determined.
以百里酚兰为指示剂,用氢氧化钠标准滴定溶液测定植物油中游离脂肪酸。
To determine the free fatty ac id in vegetable oil with NaOH's standard titration solution, using Thymol Blue as its indicator.
[方法]以百里酚兰为指示剂,用氢氧化钠标准滴定溶液测定植物油中游离脂肪酸。
[Methods] to determine the free fatty ac id in vegetable oil with NaOH's standard titration solution, using Thymol Blue as its indicator.
结果各种溶液测定的总标准差小于其浓度的5 %或检出限,总平均回收率可信限在允许范围内。
Results Total standard deviation of every solution was less than 5% of the concentration or detection limit. The confident limit of total average rate of recovery in sample kept in range of allowable.
用稀溶液粘度法测定了几种不同氯化聚丙烯粘均分子量,并且将稀溶液测定的特性粘数与一般工业使用浓度的粘度联系起来。
The viscosity average molecular weighs of several different CPPs were determined by dilute solution viscometry and the intrinsic viscosity was related to the viscosity of industry concentration.
所有稳定性测定应使用一系列的由新制备的适当的无分析物,无干扰的生物基质储备溶液制备的样品。
All stability determinations should use a set of samples prepared from a freshly made stock solution of the analyte in the appropriate analyte-free, interference-free biological matrix.
制革计:测定制革溶液单宁酸的浓度之用。
Tannometers: Used to determine the tannic acid concentration of tanning solution.
实验证明:吸附金后的泡沫塑料不用水冲洗,直接用硫脲溶液解脱,金的测定结果更好。
Results show: after the adsorption of gold foam does not wash with water, the direct use of thiourea solution of the cult, the determination of gold a better result.
溶液的旋光度应该在溶液配制好30分钟内进行测定。
Optical rotation of solutions should be determined within 30 minutes of preparation.
以百里酚的次溴酸钠溶液为显色剂,用正丁醇萃取显色产物,以分光光度计比色测定有机相的吸光度值。
Using thymol-sodium hypobromite as chromogenic reagent, and extracting the colour formed with butanol, a spectrophotometric method for the determination of arginine in fermentation broth was studied.
目的为了寻找一种操作简单的枸橼酸钾溶液含量测定的控制方法。
OBJECTIVE To find an easy method for quality control of potassium citrate solution.
方法:采用溶液颜色检查的色差法测定14批样品溶液的颜色,并与目视法作比较。
METHODS: the color of 14 batches of sample solutions was determined by chromatic aberration method, which was then compared with that by visualization.
采用分光光度法测定了试剂在水溶液中的离解常数。
The dissociation constant of the reagent was determined in aqueous solution.
本实验研制了一种测试银离子浓度的试纸。用于溶液中银离子浓度的快速测定。
A kind of special test paper to quickly determine concentration of silver ion in some solutions was prepared.
通过测定丝胶溶液的表面张力及其随时间的变化,研究丝胶蛋白质在空气-水界面上的吸附。
The adsorption of sericin at the air water interface was studied by measuring the surface tension of its aqueous solutions as the function of time.
利用静态光散射可以测定蛋白质溶液渗透的第二维里系数;
Static light scattering can measure the osmotic second virial coefficient of protein solution.
本文提出了以氢化物与硝酸银反应为基础的在一份试样溶液中连续测定微量砷和铅的分光光度法。
The continuous determination of arsenic and lead in the solution of the same sample by spectrophotometry is described, based on the reaction between hydrides and silver nitrate.
在相态分析中,不同相态同一种元素的含量相差很大,给溶液的提取、制备及测定工作带来了很多不便。
In phase analysis, contents of the same element with different phase are largely differ so that it brings difficulties for extracting, preparation and determination of the solution.
提出用空气乙炔原子吸收光谱法进行电化学浸渍液乙醇溶液中镍含量的测定。
The air acetylene atomic absorption spectrometry is used for measuring the nickel content in hydrogen battery electrochemistry impregnate ethanol solution.
目的:测定复方红霉素醇溶液中的红霉素含量。
OBJECTIVE: To measuring the content of erythromycin in compound erythromycin alcoholic solution.
采用碳酸钠熔融分解样品制成待测试样溶液,同时用于测定中变催化剂中的铁、。
Sample solution is made by decomposing the sample of melted sodium carbonate, which is used to confirm the contents of iron, chromium and molybdenum in MT shift catalyst.
本文提出了金属缓冲溶液中离子选择电极响应曲线平移法测定配合物的稳定常数。
The method of parallel motion of response curve for lead ion-selective electrode in lead buffers is given to determine the stability constant of Pb-NTA complex in ethanol-water solvent.
方法采用琼脂稀释法分别测定壳聚糖和醋酸溶液的MIC值。
Methods to determine the antifungal MIC of chitosan and acetic acid by AGAR dilution method, respectively.
方法采用琼脂稀释法分别测定壳聚糖和醋酸溶液的MIC值。
Methods to determine the antifungal MIC of chitosan and acetic acid by AGAR dilution method, respectively.
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