Determination of ng/ml levels of sulphide by a chemiluminescent reaction.
Sulphide (0.1 ng/ml) is determined by measuring the chemiluminescence given by its oxidation in aqueous solution by hydrogen peroxide, catalysed by peroxidase. The detection limit is 0.05 ng/ml. Several other, rather less sensitive, systems are also described. Sulphite and thiocyanate, which depress the emission, are masked with formaldehyde.
Burguera
J L
JL
Chemistry Department, Birmingham University, P.O. Box 363, Birmingham, B15 2TT, U.K.
Townshend
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A