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2006•Neimenggu Shi-da xuebao. Zhexue shehui kexue hanwen banRequires access

Study and application on colour reaction of Zinc(II)-o-Chlorophenylfluorone-Surgactants

Mengmeng Wu

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Abstract

The reacting condition of o-Cl-PF and Zn(Ⅱ) are studied.The results show that with the presence of CTMAB,the Zn(Ⅱ) reacts with color reagent and forms a 1∶2 stable purple complex in the medium of sodium traborate-NaOH buffer solution(pH=9.05).The complex remains stable for 2 hours at least.The apparent light absorption coefficient per mol is e=4.7×10~(-4)L·mol~(-1)·cm~(-1) and the maximum absorption appears at λ=565nm.Beer's law is obeyed in the concentration range of 0.12～0.80μg for Zn(Ⅱ).The proposed method has good sensitivity and selectivity.It has been applied to the determination of trace amount of Zn(Ⅱ) in table salt of added zinc and zinc gluconate tablet with satisfactory results.

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What this paper is about

The reacting condition of o-Cl-PF and Zn(Ⅱ) are studied.The results show that with the presence of CTMAB,the Zn(Ⅱ) reacts with color reagent and forms a 1∶2 stable purple complex in the medium of sodium traborate-NaOH buffer solution(pH=9.05).The complex remains stable for 2 hours at least.The apparent light absorption coefficient per mol is e=4.7×10~(-4)L·mol~(-1)·cm~(-1) and the maximum absorption appears at λ=565nm.Beer's law is obeyed in the concentration range of 0.12～0.80μg for Zn(Ⅱ).The proposed method has good sensitivity and selectivity.It has been applied to the determination of trace amount of Zn(Ⅱ) in table salt of added zinc and zinc gluconate tablet with satisfactory results.

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Available abstract

The reacting condition of o-Cl-PF and Zn(Ⅱ) are studied.The results show that with the presence of CTMAB,the Zn(Ⅱ) reacts with color reagent and forms a 1∶2 stable purple complex in the medium of sodium traborate-NaOH buffer solution(pH=9.05).The complex remains stable for 2 hours at least.The apparent light absorption coefficient per mol is e=4.7×10~(-4)L·mol~(-1)·cm~(-1) and the maximum absorption appears at λ=565nm.Beer's law is obeyed in the concentration range of 0.12～0.80μg for Zn(Ⅱ).The proposed method has good sensitivity and selectivity.It has been applied to the determination of trace amount of Zn(Ⅱ) in table salt of added zinc and zinc gluconate tablet with satisfactory results.

Key concepts: Zinc, Reagent, Color reaction, Chemistry, Salt (chemistry), Absorption (acoustics), Buffer solution, Sodium

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Study and application on colour reaction of Zinc(II)-o-Chlorophenylfluorone-Surgactants — Research Paper | ScholarLens