实验表明，该装置是痕量挥发性有机物浓缩富集-气相色谱分析的有效手段。
The results show that it is a effective means to concentrate trace amount of volatile organic substance in GC analysis.
作者根据热力学和动力学的原理，自行设计和研制了游离烃类气体的浓缩富集装置。
Based on the principles of thermodynamics and dynamics, the authors designed and developed a new device for the concentration and enrichment of hydrocarbon gases.
然而，经历一个被称为生物富集的过程，经过几年，化学物质可以浓缩在个体中，大多储存在脂肪组织中。
However, through a process known as bioaccumulation, chemicals can become concentrated in individuals over a number of years, stored mostly in fat tissue.
目的：血小板富集浓缩（PRC）是矫形外科和颌面外科领域用来准备自体移植生长因子的常用方法。
Objective: Platelet-rich concentrate (PRC) is an autologous growth factor preparation that is in routine use for orthopaedic and maxillofacial surgery.
富集是以无水氯化钙为干燥剂，使试液在真空条件下脱水而浓缩；
The sample solution is concentrated by evaporating under vacuum with anhydrous calcium chloride as dessicant.
毛细管电泳样品电堆积富集过程可以浓缩样品组分，从而提高检测灵敏度，是一种有效的样品富集技术。
Sample stacking in capillary electrophoresis is one of the effective techniques to concentrate sample species, thus improving the detection sensitivity.
采用选择性氧化剂和还原剂对俄罗斯直馏柴油中的硫醚类硫化物和噻吩类硫化物分别进行分离和富集，得到两者的浓缩液。
Sulfur compounds in Russian atmospheric gas oil were separated into thiophene and thioether compounds by the oxidation-reduction method using selective oxidant and reducing agent.
毛细管电泳样品电堆积富集是一种通过缓冲溶液浓度的差异在毛细管中形成电场强度梯度，从而对样品进行浓缩的富集技术。
Sample stacking in capillary electrophoresis can concentrate sample species through the electrical field strength gradient caused by the inhomogeneous buffer concentration field in capillary.
同时，重金属不能被生物降解，且具有生物积累的特性，可以通过水体食物链产生生物富集和浓缩效应，最终影响人类。
Meanwhile, heavy metal is non-biodegradable, and has the characteristics of bioaccumulation, it bio-accumulates and concentrates by water food chain and finally have an effect on humanity.
报道了通过溶液萃取和吹扫-捕集，对榴莲的香气富集浓缩，并用GC - MS分析。
Aroma components in durian were obtained by solvent extraction, purge and trap technique separately, and analyzed by GC-MS.
局部淋滤富集和蒸发浓缩作用形成；
Three types of groundwater anomalies were determined, namely(1) local enrichment by leaching and evaporation;
局部淋滤富集和蒸发浓缩作用形成；
Three types of groundwater anomalies were determined, namely(1) local enrichment by leaching and evaporation;
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