Monthly vertical profile of dissolved sulfide in the interstitial water at the pen shell (Atrina pectinata) fishing ground in northeastern Ariake Bay

Colorimetric Determination of Sulfide in Microsamples

“…6 Typically, glass syringes are used in this method. [6][7][8][9] Samples for hydrogen sulfide determination are drawn directly into the glass syringes, without leaving any headspace, through an in-situ sampler into which zinc acetate solution is injected, and then sealed with a rubber cap. In the laboratory, 6 M HCl and sulfide coloring reagent are injected into the glass syringe.…”