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Design of an Automated Flow Injection-Chemiluminescence Instrument Incorporating a Miniature Photomultiplier Tube for Monitoring Picomolar Concentrations of Iron in Seawater

journal contribution
posted on 2023-05-16, 17:35 authored by Andrew BowieAndrew Bowie, Achterberg, EP, Ussher, S, Worsfold, PJ
A flow-injection (FI)-based instrument under Lab VIEW control for monitoring iron in marine waters is described. The instrument incorporates a miniature, low-power photomultiplier tube (PMT), and a number of microelectric and solenoid actuated valves and peristaltic pumps. The software allows full control of all flow injection components and processing of the data from the PMT. The optimised system is capable of 20 injections per hour, including preconcentration and wash steps. The detection limit (3 sd of the blank) is 21 pM at sea and the linear range is 21-2000 pM with a 60-second sample load time. Typical precision between replicate FI peaks is 5.9 ± 3.2% (n = 4) over the linear range. © 2005 Hindawi Publishing Corporation.

History

Publication title

Journal of Automated Methods and Management in Chemistry

Volume

2005

Pagination

37-43

ISSN

1463-9246

Department/School

School of Natural Sciences

Publisher

Hindawi Publishing Corp

Place of publication

New York

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the chemical sciences

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