结果证明，导数分光光反法对痕量组分的测定是十分有效的。
It is tested that derivative spectrophotometer is very effective for determining trace components.
分离科学面临的最大挑战是复杂体系中痕量组分的分离分析。
Separation and analysis of trace components in sophisticated matrices is the most severe challenge which separation science encounters.
然而面对复杂基质样品和痕量组分样品，常常需要在分析前对样品进行预处理以达到净化和富集的目的。
But when it comes to those samples with complicate base or contain trace component, a pretreatment step will usually be imperative for purifying and enrichment.
采用导《分光光度法研究了对甲苯磺酸痕量组分的测定方法，并选择了求导阶数、农导波长间距等最佳条件。
P-methylbenzensulforate trace components were determined by derivative spectrophotometer and optimum derivative order and wavelength intervals were selected.
结果表明，PLS法是化学计量学中一种可适用于基体较为复杂的实际样品中痕量组分同时分光光度测定的优良多元计算方法。
The results showed that PLS was an excellent multivariate statistical method suited to simultaneous determination of trace components in real samples with the complicated matrix.
尤其是激光诱导荧光检测，由于其能够满足生物样品中痕量组分的测定，甚至可以达到单分子、单细胞检测水平，而成为毛细管电泳最灵敏的检测技术。
Especially the laser-induced fluorescence detection is the most sensitive method, because it can meet to the detection of trace component, single molecule and single cell.
介绍了一种啤酒痕量有机组分的气相色谱分析方法，包括取样、样品处理及色谱柱的选择。
A gas chromatographic method is introduced for the analysis of trace organic components in beer, including sampling, pretreatment and column.
它利用分析物在不同介质中被吸附的能力差将标的物提纯，有效的将标的物于干扰组分分离，大大增强对分析物特别是痕量分析物的检出能力，提高了被测样品的回收率。
It USES substance's absorption capacity in separate the analyzed substances from interference components. It enhances the analysis capability and increases the recovery rate of the sample.
痕量、超痕量贵金属元素的简单、高灵敏度、多组分连续或同时测定方法的研究具有一定现实意义。
Some new achievements of the analytical methods for successive and simultaneous determination of precious mental elements were introduced in the present paper.
利用超临界萃取技术提取分析基体中痕量目的组分时，常需加入适宜的改性剂以提高萃取效率。
Supercritical fluid extraction (SFE) is a new promising chemical separation technology, one of its main application fields is for sample purification to extract and detect the aim analyte.
研究表明，对痕量和近似的矿物组分都可以得到谱峰不受任何影响的纯正的红外谱图。差示定量结果也十分满意。
The dispersive infrared spectrum is also limited by the overlaying andi superposition of the bands of complex multicomponent systems.
研究表明，对痕量和近似的矿物组分都可以得到谱峰不受任何影响的纯正的红外谱图。差示定量结果也十分满意。
The dispersive infrared spectrum is also limited by the overlaying andi superposition of the bands of complex multicomponent systems.
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