摘要
本文提出了一种利用非抑制型离子色谱法测定印制电路板表面六种无机阴离子污染物的方法。样品用异丙醇水溶液提取后,用Sep—Pak C_(18)小柱净化试样,用离子色谱分离,电导检测器检测。六种阴离子的检测限介于0.01～0.2μg/ml之间,回收率为98～104％。方法准确,可靠,可用于印制电路板洁净度的评价分析。
A method for the determination of six inorganic anions on the surface of Printed Circuit Board (PCB) by non-suppression ion chromatography was proposed in this paper.The samples were extracted by isopropanol/water solution and purified by Sep-Pak C_(13) columu.The sample solution was analyzed by IC with conductivity detector.The detection limit of six anions was between 0.01 and 0.2μg/ml, and the recovery of six anions was found to be 98%～104%.The method was proved to be accurate, reliable and can be used for the evaluation of the cleanliness of PCB.
出处
《福建分析测试》
CAS
2002年第1期1499-1501,共3页
Fujian Analysis & Testing
关键词
印制电路板
非抑制型离子色谱法
阴离子污染物
Printed circuit boards
Non-suppression ion chromatography
Anion contaminants
