PROCESS MONITOR FOR AN AMMONIACAL NICKEL SOLUTION EMPLOYING AN INFRARED LIGHT-EMITTING DIODE AND A LOG-RATIO AMPLIFIER

被引：13

作者：

HAUSER, PC ^{[1
]}

RUPASINGHE, TWT ^{[1
]}

LUCAS, CC ^{[1
]}

MCCLURE, A ^{[1
]}

机构：

[1] QUEENSLAND NICKEL PTY LTD,TOWNSVILLE,QLD 4818,AUSTRALIA

来源：

ANALYST | 1995年 / 120卷 / 10期

关键词：

INFRARED LIGHT-EMITTING DIODE; SPECTROPHOTOMETRY; PROCESS MONITOR; NICKEL;

D O I：

10.1039/an9952002635

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An infrared light-emitting diode with peak-emission intensity at 950 nm is used to monitor, on-line, the concentration of a nickel hexamine carbonate solution; This provides a continuous read-out of the concentration in an extraction stream and is used to control the process at a nickel refinery. Previously the data Was obtained by frequent manual sampling and determination of the concentration by AAS, The transducer employs fibre-optic cables and a beam splitter in Order to allow complete sealing of the opto-electronics and correction for intensity fluctuations of the light source with a log-ratio amplifier, These measures allow the device to function with good performance in a hostile environment of ammonia vapours and large temperature fluctuations.

引用

页码：2635 / 2638

页数：4

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