以HPLC法测定样品阿魏酸含量。
全自动滴定仪一般用来测定样品的浓度。
Automatic titrator is usually used for measuring concentrations of samples.
方法：DPPH法测定样品对自由基的清除作用；
方法作业场所职业卫生学调查，气相色谱法测定样品；
Methods Occupational hygiene investigation were made on the work sites.
可以一次进样，同时测定样品中浓度大小相差很大的多种糖份。
Samples with great difference in sugar concentrations thus can be analyzed simultaneously by HTLC after one injetion.
通过测定样品的物理化学指标来辨别中国葡萄酒的品种和产地。
The physical chemistry indexes of Chinese wines were investigated for the purpose of their classification according to variety or origin.
以丙酮作为污染物，来测定样品在空气中的可见光光催化活性。
The photocatalytic activity was evaluated using the photocatalytic oxidation of acetone at room temperature under visible-light irradiation.
结论：该法测定样品无需衍生化，分离效果好，分析快速准确。
Conclusions: the method is not derivatived and the result of separation is good. The analysis is accurate, satisfactory.
TEGA的小烘箱将样品加热，然后“闻”挥发出的蒸气，以测定样品成份。
TEGA's tiny ovens heat the samples and then "sniff" the vapors given off to determine their composition.
通过测定样品的激发光谱和发射光谱，研究了焙烧温度对荧光粉结构的影响。
The effects of calcining temperature on structural variations of the phosphors were investigated.
本发明也涉及用于测定样品中的多种不同的生物体类型的方法、试剂盒、试剂和组合物。
The invention is also to methods, kits, reagents and compositions for measuring a plurality of different organism types in a sample.
制作标准溶液作为参比，制备模拟试剂，实现用目视比色法测定样品中微量磷和氰化物含量。
Making standard solution as reference and preparing the simulation of reagents makes it possible that content of and cyanide in the sample can be measured with visual colorimetry.
结论攷虑到分析周期及分离效果，建议用毛细管信取代传统的填充柱测定样品中冰片的含量。
CONCLUSION According to the operation period and separation efficiency, the capillary column is suggested to replace the packed column for the determination of borneol contents.
研制了一种新型的探测器，利用气体放电和外部电路猝灭的方法测定样品表面发射的低能光电子。
We have studied and constructed a new detector by gas discharge and external quenching circuits to measure the low energy photoelectron emitted form the specimen surface.
方法收集12个不同产地的白术样品，以原子吸收光谱法测定样品中的铅、镉、铜、砷和汞的含量。
METHODS Using atomic absorption spectroscopy to determine the content of Pb, Cd, Cu, as and Hg in AMK samples collected from 12 different areas.
方法分别采用分光光度法和电感耦合等离子发射光谱法测定样品中的磷酸盐，比较两种方法的可行性。
METHODS the content of phosphate were determined by the inductively coupled plasma-atomic emission spectrometry (ICP-AES) and Spectrophotography, and the comparing their feasibility.
利用缓冲体系的平衡移动，结合不同的电极进行电势法检测，可间接测定样品中各种离子甚至中性分子的浓度。
Using equilibrium shift of buffer solution, indirect determination of a number of ionic even molecular components by FIA in combination with potentiometric detection can be realized.
采用真空冷冻干燥和硝酸过氧化氢体系微波消解处理饮食样品，ICP-MS法测定样品中28种元素的含量。
A method for determining 28 elements of diet samples was developed by using vacuum freeze-drying microwave digestion-ICP-MS in HNO3-H2O2 solution system.
光声位相在测定样品的光学和热学性质、样品无辐射弛豫过程的研究以及深度剖面分析等方面显示了特有的能力。
Photoacoustic phase shows the special ability of measuring the optical and thermal properties, studying the nonradiative relaxation processes and analyzing the depth profile of the sample and so on.
分别用混合酸湿法消解和微波消解两种方法处理鱼虾样品，用原子吸收法测定样品中铜、锌、铅、镉、铬的含量。
TO Detect Cu, Zn, Pb, Cd, cr in fish and shrimp With Microwave Digestion and Wet Digestion by AAS.
与其他测定仪相比，此款闪点测定仪能够提供更高的操作温度范围，使用阿贝尔方法测定样品时具有更高的灵活性。
The flash tester provides an increased temperature range of operation as compared with other testers, allowing greater flexibility in testing samples according to the Abel test method.
根据化学动力学原理，采用恒温加速试验方法对阿魏酸水溶液的化学稳定性进行了研究，通过高效液相色谱法测定样品中阿魏酸含量。
The chemical stability of aqueous solution of ferulic acid was studied by the constant temperature accelerated test according to the princiPle of chemical dynamics.
采用氢化物原子吸收法测定样品中痕量砷，对于样品的前处理及采用氢化物法测定砷含量时，砷的不同价态及共存离子的影响，分别进行了探讨。
Determination of trace arsenic from water sample by hydride atom absorption, and effect of valence number of arsenic and varied coexisting ions on the determination were discussed.
通过样品dna研究，他们能测定出有细菌存在。
By studying the DNA of the samples they were able to determine which bacteria were present.
通过样品dna研究，他们能测定出有细菌存在。
By studying the DNA of the samples they were able to determine which bacteria were present.
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