理化检验-化学分册
理化檢驗-化學分冊
이화검험-화학분책
PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS
2001年
1期
29-30,33
,共3页
间接火焰原子吸收光谱法%苯三唑%冷却水
間接火燄原子吸收光譜法%苯三唑%冷卻水
간접화염원자흡수광보법%분삼서%냉각수
在乙酸铵介质中，加入过量硝酸银标准溶液，离心分离苯三唑银沉淀，火焰原子吸收光谱法测定上清液中剩余的银，根据过剩银的吸收信号与其浓度的线性关系，利用光度滴定法原理，以作图法或计算法测定工业合成样品及内燃机车冷却水样品中苯三唑含量。测定0.60mg/50ml的苯三唑，RSD为0.8％，回收率(n＝5)为99.5％～101.3％。检出限为60μg/50ml。
在乙痠銨介質中，加入過量硝痠銀標準溶液，離心分離苯三唑銀沉澱，火燄原子吸收光譜法測定上清液中剩餘的銀，根據過剩銀的吸收信號與其濃度的線性關繫，利用光度滴定法原理，以作圖法或計算法測定工業閤成樣品及內燃機車冷卻水樣品中苯三唑含量。測定0.60mg/50ml的苯三唑，RSD為0.8％，迴收率(n＝5)為99.5％～101.3％。檢齣限為60μg/50ml。
재을산안개질중，가입과량초산은표준용액，리심분리분삼서은침정，화염원자흡수광보법측정상청액중잉여적은，근거과잉은적흡수신호여기농도적선성관계，이용광도적정법원리，이작도법혹계산법측정공업합성양품급내연궤차냉각수양품중분삼서함량。측정0.60mg/50ml적분삼서，RSD위0.8％，회수솔(n＝5)위99.5％～101.3％。검출한위60μg/50ml。
An indirect FAAS method for the determination benzotriazole (BTA) reported is in this paper.
The BTA is first precipitated with a definite amount of silver salt in the presence of ammonium acetate and Ag
(Ⅰ) ion is determined by FAAS. The proposed method proved to be rapid, convenient and with less interferences.
The relative standard deviation for the determination of 0. 60mg/50ml BTA (n=5) is found to be 0. 8% and the re
covery to be between 99.5%～101.3%. The detection limit of the method is 60μg·ml-1. This method has been
successfully applied to the determination of BTA in the diesel locomotive cooling water and in some simulated in
dustrial samples.
