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Determination of manganese in natural waters by flameless atomic absorption spectrometry

✍ Scribed by J.M. McArthur

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
502 KB
Volume
93
Category
Article
ISSN
0003-2670

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✦ Synopsis

SUhI-MARY

Manganese can be rapidly determined in natural venters by direct-injection flame!ess a.as. Interference caused by sea salts in waters of salinity O-35"/,, can be eliminated by charring with ammonium nitrate and with a slow temperature rise. The sensitivity of the determination is depressed by the presence of nitric acid. the depression decreasing with graphite tube age. In sahne water matrices. the detection limit is better than 0.002 ng and the sensitivity is better than 0.02 ng for 1% absorbance. Precision is better than 10% for manganese concentrations of 10 r,rg 1-I in sea water.

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