SEQUENTIAL FLOW-INJECTION DETERMINATIONS OF CALCIUM AND MAGNESIUM IN WATERS

• Type: Another Publication in an International Scientific Journal
• Date: 1986

Authors

ALONSO, J (Author) Other; BARTROLI, J (Author) Other; Lima, JLFC (Author) FFUP; MACHADO, AASC (Author) Other

Journal

Title: Analytica Chimica Acta

Vol. 179

Pages: 503-508

ISSN: 0003-2670

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 45 Citations

Scopus - 40 Citations

Other information

Authenticus ID: P-001-VZJ

DOI: 10.1016/s0003-2670(00)84500-6

Abstract (EN): A tubular PVC membrane electrode for calcium without inner reference solution and a device for location of the reference electrode are described. In the flow-injection system, calcium is determined potentiometrically and then magnesium is determined by atomic absorption spectrometry. The electrode provides linear response to calcium in the range 5 × 10-5/2-10-1 M. On-line dilution of the sample allows magnesium determination in the range 0/2-10 mg l-. Flow rates between 3 and 6 ml min-1 are possible. The sampling frequency is 60/2-90 h-1. © 1986.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6