Extraction-Spectrophotometric Determination of Trace Amounts of Barium by 18-Crown-6 and Rose Bengal.

DOI PDF Web Site Web Site Web Site 37 References

Bibliographic Information

Other Title
  • Extraction—Spectrophotometric Determination of Trace Amounts of Barium by 18-Crown-6 and Rose Bengal

Search this article

Abstract

A simple and sensitive extraction-spectrophotometric method for the determination of barium is reported. The 18C6-barium-Rose Bengal (18C6-Ba-RB) ternary complex was quantitatively extracted into dichloromethane, and its absorbance was measured at 565 nm. The calibration graph is linear over a barium concentration range of 0.083 - 4.70 µg ml-1. The limit of detection of barium was 17.7 ng ml-1. The relative standard deviation (RSD) of ten replicate measurements was 2.19% for a 0.83 µg ml-1 barium solution. The interference effects of various cations and anions were also studied and reported. The described method provides a simple and reliable means for determination of trace amounts of barium in real samples.

Journal

  • Analytical Sciences

    Analytical Sciences 16 (6), 575-577, 2000

    The Japan Society for Analytical Chemistry

References(37)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top