High-Performance Liquid Chromatographic Determination of Oxalic Acid in Tea Using Tris(1, 10-phenanthroline)-ruthenium(II) Chemiluminescence.

• WU Fengwu

  Department of Chemistry, Wuhan University

• HE Zhike

  Department of Chemistry, Wuhan University

• LUO Qingyao

  Department of Chemistry, Wuhan University

• ZENG Yun’e

  Department of Chemistry, Wuhan University

Bibliographic Information

Other Title

• High-Performance Liquid Chromatographic

Abstract

The chemiluminescence (CL) of Ru(phen)₃²⁺ was applied to HPLC determination of oxalic acid, which was separated by a C₁₈ reverse-phase column with a mobile phase of 0.02 mol/l NH₄Ac, mixed with 0.25 mol/l Ru(phen)₃²⁺ and 2.0 mmol/l Ce(SO₄)₂ (0.08 mol/l H₂SO₄), and then passed through a homemade CL detector. The reaction of Ce(IV) oxidized Ru(phen)₃²⁺ and the oxalic acid emitted light. The detection limit was 6.2×10^-6 mol/l for oxalic acid at a S/N ratio of 3, the relative standard deviation for 5 replicate injections of 1×10^-3 mol/l oxalic acid standard was calculated as 5.6%, and the lin-ear calibration range was 1×10^-5 to 4×10^-3 mol/l. The method was successfully applied to determination of oxalic acid in tea.

Journal

• Analytical Sciences

  Analytical Sciences 14 (5), 971-973, 1998

  The Japan Society for Analytical Chemistry

Keywords

• Analytical Chemistry

Details

• CRID: 1390282679235012480
• NII Article ID: 10002417404
• NII Book ID: AA10500785
• DOI: 10.2116/analsci.14.971
• COI: 1:CAS:528:DyaK1cXmslWqu7g%3D
• ISSN: 13482246
• ISSN: 09106340
• NDL BIB ID: 4576997
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4576997
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.14.971.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.14.971/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci/14/5/14_5_971/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed