谱

Objective: To establish a method for determination of melamine residues in milk by gas chromatograph-mass spectrometry.

目的：建立了一种用于奶粉及鲜奶中三聚氰胺含量的气相色谱－质谱联用检测方法。

A method for analysis of trace ethoxyquin residues in apple and pear was developed by high performance liquid chromatography-tandem mass spectrometry.

建立了高效液相色谱－串联质谱法测定苹果和梨中乙氧基喹啉抗氧化剂残留的方法。

Objective: To establish a method for determination of quinolones residues in aquatic products by high performance liquid chromatography/tandem mass spectrometry.

目的：建立高效液相色谱－串联质谱法检测水产品中喹诺酮类药物残留分析方法。

The method on trans fatty acids analysis in food is very important. The effects of methylate sodium, potassium hydroxide, sulfuric acid and boron trifluoride in methanol and their different concentration and dosage on TFA analysis were studied. The chromatographic condition and the influence of time and temperature on the esterifation of TFA using boron trifluoride in methanol were optimized. A method for analyzing TFA were established by GC based on boron trifluoride in methanol and RT-2560(100m×0.25mm×0.2μm) capillary column.

研究了甲醇钠－甲醇、氢氧化钾－甲醇、浓硫酸－甲醇和三氟化硼－甲醇4种甲酯化试剂的浓度、用量及甲酯化时间和温度对反式脂肪酸检测的影响，优化了色谱条件，建立了以三氟化硼－甲醇法甲酯化，RT-2560(100m×0.25mm×0.2μm)毛细管柱为基础的反式脂肪酸气相色谱检测方法，C18：1-9 t， C18：1-11 t， C18：2-9 t， 12 t和C22：1-13 t 4种反式脂肪酸的最小检出浓度在0.774.08 mg/kg之间。4种反式脂肪酸不同添标浓度回收率为98.44%101.23%，重复测定的相对标准差在0.22%1.31%之间，有较好的准确度和重现性。

The main results and conclusions were as follows: 1 Conditions of HPLC and GC were probed to, and their correlation coefficients and limits of detection met the requirement of microanalysis.

主要研究结果和结论如下： 1确定了高效液相色谱法和毛细管气相色谱法的条件，相关系数和最低检出限均符合微量分析的要求。

Preparation of pure chlorophylls and pheophytins was performed by microcrystal cellulose column chromatography and silica gel thin layer chromatography respectively.

3分别采用微晶纤维素柱色谱和硅胶薄层色谱制备出较纯的系列叶绿素衍生物。

This study established a LC-MS/MS method for the determination of squamocin and bullatacin, and calculated their enzyme kinetics in rat microsome.

［目的］建立番荔枝内酯类化合物squamocin和bullatacin的液相色谱串联质谱检测方法，并测定其在大鼠肝微粒体中的酶动力学参数。

According to the variance module and resolution after deconvolution, the ideal mixed phase wavelets may be extracted from the wavelet gatherings with the same amplitude spectrum and different phase spectrums finally. Therefore the target for raising the resolution of seismic records can be attained by the determinacy wavelet deconvolution. Through the wavelet extraction tests for theoretic synthetic records and actual seismic data and the processing of enhancing resolution of seismic data by use of the wavelets extracted, it was shown that such a method is correct and effective.

依据反褶积后地震记录方差模大小和分辨率情况，最终从一系列相同振幅谱不同相位谱子谱集合中确定理想的混合相位子波，通过确定性子波反褶积达到提高地震记录分辨率的目标对理论合成地震记录和实际地震记录进行了子波提取实验，并利用提取的地震子波对地震资料进行了提高分辨率的了处理，实验结果表明了该布法约正确准和有效性。

Re-Os dating for the same group of molybdenite samples using inductively coupled plasma mass spectrometry and negative thermal ion mass spectrometry determination after sample pretreatment with Carius tube digestion were compared.

对同一地区但Re、Os含量不同的一组辉钼矿样品，分别采用电感耦合等离子体质谱和负离子热表面电离质谱对其Re-Os年龄进行了测定比较。

The peroxide decontamination products of mustard gas were separated and detected by gas chromatography-mass spectrometry.

采用气相色谱－质谱技术对芥子气的过氧化物消毒产物进行了分离和检测。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。