您要查找的是不是:
- This paper describes a quantitative analysis method of molinate by gas chromatography with glass chromatographic colcumn packed with Chromosorb WHP and OV-225.The internal standard sample is diethyl phthalate. 本文叙述了采用OV-225玻璃填充柱,以邻苯二甲酸二乙酯做内标,用气相色谱定量分析禾草特原油的方法。
- Keywords angelica oil;ligustilide;method of gas chromatography(GC) with internal standard sample;method of ultraviolet (UV) photometry; 当归油;藁本内酯;气相色谱内标法;紫外分光光度法;
- internal standard sample 内标试样
- The internal standard was maprotiline. 内标为马普替林 ;
- The kilogram is the international standard of weight. 公斤是国际通用的重量标准。
- Octane and para tetramethyl benzene were served as the solvent for dissolving sample and internal standard,respectively. 正辛烷和对四甲基苯分别用作样品的溶剂和内标物,采用内标法定量。
- Petri: I can't remember whether we keep the standard sample, any inputs? 我不记得我们是否保存了用于测试仪器的标准样本,你的意见?
- Standard sample rate converter: provides good quality sample rate conversion. 标准采样速率转换程序:提供高质量的采样速率转换。
- Methods The sample was analysed by GC after extracting by ethyl acetate and derivatization with boron trifluoride-methanol,the internal standard was dimethylmalonate. 方法样品经酸化乙酸乙酯萃取,用三氟化硼-甲醇衍生后进行GC分析。
- Using DB- FFAP Wide Bore capillary column and n-propanol as internal standard. 采用DB-FFAP大口径毛细管柱,以正丙醇为内标进行定量。
- The kilometreis the international standard. 千米是国际通用的标准。
- It means "International Standard Serial Number". 它的意思是“国际标准期刊刊号”。
- It conforms to the international standard. 它符合国际比赛标准要求。
- This test checks whether a standard sampling is done. 这个测试检查是否完成标准取样。
- This is particularly useful where the food color is so unstable as to make the forwarding of a standard sample unfeasible. 在食品色泽极其不稳定以致于不可能预先制作标准样品时,这种方法特别有效。
- This paper summarized research and manufacture of chromium standard sample about CITIC Jinzhou Ferroalloy Co. 就本单位研制的金属铬标准样品的工作进行了详细地总结。
- METHODS With 45Sc, 89Y, 115In and 209Bi as internal standard elements, the sample solutions were analyzed by ICP-MS after microwave digestion, and the contents of elements were calculated according to their calibration curves. 方法样品经微波消解后,以钪(45Sc)、钇(89Y)、铟(115In)、铋(209Bi) 作为内标物质,直接用ICP-MS分析上述7种元素,并通过标准曲线计算含量。
- We find your machine tools up to the international standard. 我们认为贵公司的机床达到了国际标准。
- A standard sample of 25.4 mm. length (mode, tested by Webb's sorter) is used in the test. 本文的后半部对用茹柯夫仪器测得的数据进行计算的方法加以讨论。
- We found your machine tools up to the international standard. 我们认为贵公司的机床达到了国际标准。