循环水中三元共聚物阻垢剂TH-3100的测定
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摘要
建立了快速准确测定循环水中羧酸盐-磺酸盐-非离子三元共聚物TH-3100浓度的分析方法。研究了十二烷基二甲基苄基氯化铵浓度、pH和反应时间等对吸光度的影响,确定最佳测定条件。同时探讨了循环水中共存物质对TH-3100测定的影响,结果表明:除Ca2+、Mg2+和六偏磷酸钠(SHMP)外,循环水中其他物质(SO42-、Cl-、PO43-、Fe2+、Zn2+、HEDP、ATMP、BTA及MBT)对测定几乎没有影响;Ca2+、Mg2+可通过加入EDTA二钠进行掩蔽,SHMP的影响可通过加酸蒸煮消除。这种方法简便、准确,应用性强。
A quick,accurate method for the determination of the concentration of carboxylate-sulfonate-noniobic terpolymer TH-3100 in circulating water has been proposed. The effects of the concentration of dodecyl benzyl dimethyl ammonium chloride,p H,reaction time,etc. on the absorbency are studied,and the optimal determination conditions are determined. The effects of coexisting substances on the determination of TH-3100 are discussed. The results show that other substances,such as SO42-,Cl-,PO43-,Fe2 +,Zn2 +,HEDP,ATMP,BTA and MBT in circulating water almost do not have any effects on the determination of TH-3100,except for Ca2 +,Mg2 +and sodium hexametaphosphate(SHMP). Ca2+and Mg2+can be sheltered by adding a certain amount of EDTA-2Na. The effect of SHMP can be eliminated by adding acid and boiling. This method is simple,accurate and of great practical value.
A quick,accurate method for the determination of the concentration of carboxylate-sulfonate-noniobic terpolymer TH-3100 in circulating water has been proposed. The effects of the concentration of dodecyl benzyl dimethyl ammonium chloride,p H,reaction time,etc. on the absorbency are studied,and the optimal determination conditions are determined. The effects of coexisting substances on the determination of TH-3100 are discussed. The results show that other substances,such as SO42-,Cl-,PO43-,Fe2 +,Zn2 +,HEDP,ATMP,BTA and MBT in circulating water almost do not have any effects on the determination of TH-3100,except for Ca2 +,Mg2 +and sodium hexametaphosphate(SHMP). Ca2+and Mg2+can be sheltered by adding a certain amount of EDTA-2Na. The effect of SHMP can be eliminated by adding acid and boiling. This method is simple,accurate and of great practical value.
引文
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[2]Hoang T A,Ang H M,Rohl A L.Investigation into the effects of phosphonic inhibitors on the formation of calcium sulfate scales[J].Desalination and Water Treatment,2012,29(1):294-301.
[3]赵彦生,孙凤儿,刘永梅,等.我国聚合物阻垢剂的研究新进展[J].化学与生物工程,2007,24(2):1-4.
[4]盖军.油田用水溶液聚合物防垢剂[J].工业水处理,1996,16(5):7-9.
[5]Chen Bingzhi,Xiao Caibin,Xu Hong,et al.Methods of using cyanine dyes for the detection of analytes:美国,8343771[P].2013-01-01.
[6]梁Y,张L,肖C.确定水体系中聚合物浓度的方法:中国,101765772[P].2010-06-30.
[7]Myers R R,Fink J E.Method for the colorimetric determination of polycarboxylates in aqueous systems:美国,4894346[P].1990-01-16.
[8]Buentello K E,Kye L M,Zhang Yibin,et al.Method of stabilizing dye solutions and stabilized dye compositions:美国,6524350[P].2003-02-25.
[9]Winnik M A,Borg R M.Modified,water-soluble polymers containing amide groups reacted with xanthydrol and other dyes:美国,4813973[P].1989-03-21.
[10]Hoots J E.Monitoring and dosage control of tagged polymers in cooling water systems:美国,5171450[P].1992-12-15.
[11]章臻.循环冷却水中水处理剂在线监测方法的建立及相应仪器的研发[D].厦门:厦门大学,2009.
[12]郑用熙.胶束增溶分光光度法反应机理的探讨[M].北京:地质出版社,1980:3-4.
[13]何译人.无机制备化学手册[M].2版.北京:化学工业出版社,1972:335-339.