Bacterial oxidation of polythionates: determination of tetrathionate with an ion-selective electrode.
A commercially available ion-selective electrode for nitrate was used to continuously monitor tetrathionate oxidation by Thiobacillus dentrificans. The  electrode was much more sensitive to tetrathionate than to nitrate. The same electrode could also be used for the determination of trithionate.
D004566:Electrodes; D009566:Nitrates / Q000032:analysis; D010084:Oxidation-Reduction; D010101:Oxygen Consumption; D013776:Tetrathionic Acid / Q000032:analysis / Q000378:metabolism*; D013855:Thiobacillus / Q000378:metabolism*; D013885:Thiosulfates / Q000378:metabolism*
D009566:Nitrates; D013885:Thiosulfates; D013776:Tetrathionic Acid