Both batch and column variants of SPE can be used for preconcentration purposes.
固相萃取的分配变量和圆柱变量都可以用于预浓缩的用途。
Sample stacking, an on-column preconcentration technique for capillary electrophoresis was reviewed with 51 references.
评叙了样品堆积，一种毛细管电泳提高检测灵敏度的柱上浓缩技术。
The composition, work principle as well as measurement and control system of a new X-ray separator for ore preconcentration are presented.
介绍了新型矿石预选设备X射-线分选机的组成、工作原理及其测量操作系统。
Trace amounts of molybdenum in water and soil extract samples were determined using a dual column on-line ion-exchange preconcentration FIA-ICP system.
本文采用双柱在线离子交换预浓缩FIA-ICP系统，建立了水及土壤浸出液中痕量钼的测定方法。
The preconcentration and determination of platinum, palladium, rhodium and iridium in geological samples by nickel sulphide fire assay and ICP-MS were described.
建立了锍试金富集电感耦合等离子体质谱法(ICP - MS)测定地质样品中铂、钯、铑、铱的新方法。
A preconcentration on TOPO chemically modified electrode-graphite furnace AAS method has been developed for the determination of trace antimony in water samples.
本文研究了三辛基氧化膦(topo)学修饰电极预富集石墨炉原子吸收法测定水样中痕量锑。
The conditions for synthesis of PP (polypropylene) -diphenylcarbazide resin and separation and preconcentration of silver in geological samples have been studied.
研究了PP(聚丙烯)二苯氨基脲树脂的合成及其分离富集样品中银的条件。
On the basis of discussion about geologic Settings of the Hanzhong region, the understanding of characteristics of gold preconcentration is presented in this paper.
本文在讨论汉中地区地质背景的基础上，对金矿预富集的特征提出了认识。
The proposed method was successfully applied to the on-line preconcentration, separation and determination of gold in nickel alloy and anode slime certified samples.
利用本实验方法成功实现了合金和阳极泥标准样品中金的在线预浓集分离、测定。
The present paper describes the optimum conditions of separation and preconcentration of Au, Pd and Pt in geological samples with gold orange G chelate-forming resin.
主要研究了金橙G螯合形成树脂分离富集地质样品中金、铂、钯的最佳实验条件。
A new method for determining trace-level copper ion was proposed based on flow-injection on-line preconcentration and microwave plasma torch atomic emission spectrometry.
基于流动注射-在线柱预浓集-微波等离子体炬原子发射光谱，对在线浓集测定流路和各种测试条件进行优选，建立了一种测定痕量铜的新方法。
The lean magnetite ore can be turned into one that has utilization value by wet preconcentration by magnetic separation after fine crushing to discard most of qualified waste.
通过采取细碎后湿式磁选预选方法，抛除掉大部分合格废石后，可以将该贫磁铁矿变成为具有开发利用价值的矿物。
The flow injection separation and preconcentration techniques combined with atomic absorption spectrometry (AAS) as well as their applications are reviewed with 86 references.
对流动注射在线分离浓集与原子吸收光谱连用技术及其应用作了综述。 引用文献86篇。
The method has been applied to preconcentration, separation and determination of trace Pt and Pd in mineral samples. The results are in agreement with those provided by ICP-AES.
方法用于矿石中微量铂、钯的富集分离和测定，结果与等离子体发射光谱法及推荐值相符。
A review on analytical progress of rhenium was given during recent years, including decomposition of sample, separation and preconcentration as well as determination of rhenium.
本文综述了近年来国内外铼的分析进展，包括了矿样的分解、铼的分离富集以及铼的测定。
It is a new method for liquid - liquid extraction that the preconcentration of samples is based on micelle - mediated phase separation by the character of surfactant cloud point.
通过表面活性剂浊点特性实现胶束相分离以达到样品预富集，是一种新兴的液-液萃取方法。
A flow injection on-line adsorptive preconcentration system with a knotted reactor (KR) for flame atomic absorption spectrometric (FAAS) determination of trace lead was developed.
本文研究了流动注射在线编结反应器吸附预富集火焰原子吸收测定痕量铅的体系。
In the past twenty years, the use of solid phase extraction techniques has become increasingly popular for separation and preconcentration of trace elemens in environmental samples.
在过去的二十年中，利用固相萃取技术从环境样品中萃取分离富集痕量重金属离子越来越受到人们的重视，应用日益广泛。
An automated sequential injection system incorporating a sample pretreatment module was developed for the separation and preconcentration of ultra-trace copper in seawater without dilution.
将样品预处理模块与自动化顺序注射系统相结合，建立了未经稀释的海水中痕量铜的分离富集方法。
A method for calculation the economic results of the preconcentration using magnetic-pulley separator is recommended and a simple and rational calculation equation is deduced from the method.
本文提出了一种计算磁滑轮预选经济效益的方法，并导出了简单而又合理的计算公式。
A flow injection on line extraction chromatographic separation and preconcentration system is proposed for the determination of trace palladium by flame atomic absorption spectrometry (FAAS).
以三异辛胺萃淋树脂为微型柱固定相，采用流动注射在线预浓集与火焰原子吸收法联用技术，对微量钯的测定进行了研究。
Trace lead in baked food is determined by air-acetylene flame atomic absorption spectrometry (FAAS) with APDC-DDTC-MIBK as the extraction and preconcentration system after cineration process.
烘焙食品试样经灰化处理后，用APDC DDTC MIBK体系萃取富集试液中的铅，利用空气乙炔火焰原子吸收法测定烘焙食品样品中铅的含量。
A new method for the determination of micro amount of gold in lead oxide by flow injection on line separation and preconcentration graphite furnace atomic absorption spectrometry is desciribed.
采用流动注射在线分离富集-石墨炉原子吸收光谱法测定了氧化铅中痕量金。 使用本文研究的取样杯，实现了流动注射装置与石墨炉原子吸收联机测定。
However, its application in metal extraction and preconcentration has been much less extensive, although the capabilities of the technique in inorganic analysis also appear to be very promising.
然而，它在金属萃取和预富集中的应用还不十分广泛，尽管它在无机分析中的技术能力看起来也似乎非常有前景。
This paper describes the effects of preconcentration technology in iron ore beneficiation, application conditions; also introduces the applications of new preconcentration technology and equipments.
简述了预选技术在铁矿石生产应用的作用，应用的条件，介绍了选矿预选新工艺、新设备在矿山的应用。
In this paper, a flow-injection system with on-line ion-exchange preconcentration and atomic absorption detection was developed and applied to the determination of tEe amount of lead in natural water.
本文提出了痕量铅的在线流动注射离子交换预浓集火焰原子吸收测定方法，并将其应用于天然水的分析。
In this paper, a flow-injection system with on-line ion-exchange preconcentration and atomic absorption detection was developed and applied to the determination of tEe amount of lead in natural water.
本文提出了痕量铅的在线流动注射离子交换预浓集火焰原子吸收测定方法，并将其应用于天然水的分析。
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