Determination of 2-Propanol in Surface Cleaning Solutions Used for Copper Continuous Casting Process by Flow Injection-Spectrophotometric Detection with On-line Column Separation

• Published in: Analytical Sciences Vol. 19; no. 9; pp. 1335 - 1338
• Main Authors: HAYASHIBE, Yutaka, TOKUDA, Masahiro, TAKEYA, Minoru
• Format: Journal Article
• Language: English
• Published: Tokyo The Japan Society for Analytical Chemistry 01.09.2003; Japan Society for Analytical Chemistry; Japan Science and Technology Agency
• Subjects: Analytical chemistry; Applied sciences; Chemical industry and chemicals; Chemistry; Exact sciences and technology; Industrial chemicals; Organic industry; Spectrometric and optical methods; Surface cleaning; Chemical analysis; Cleaning industry; Cleaning materials; Oily solution; Secondary alcohol; Automatic analysis; Adsorption chromatography; Quantitative analysis; Chemical enrichment; Flow injection; Ultraviolet visible spectrometry
• ISSN: 0910-6340; 1348-2246
• DOI: 10.2116/analsci.19.1335

A flow-injection system has been developed for the determination of 2-propanol in the surface cleaning solutions used in the copper continuous cast rod making system. Adsorption chromatography in nitric acid medium was used for the on-line separation of oily substances in the sample solution. Cerium(IV) diammonium nitrate was utilized as the chromogenic reagent for the spectrophotometric detection of 2-propanol. The system permits a throughput of one sample per hour for the oily sample, and of 12 samples per hour for the none-oily sample. The reproducibility has been proven to be satisfactory with a relative standard deviation of less than 6.0% (2.2%(V/V) 2-propanol level, n = 23). The detection limit is 0.01%(V/V).