HY/T 0344-2022Determination of seawater trace dissolved reactive phosphorus - Flow analysis, solid phase extraction of phosphomolybdenum blue and spectrophotometric detection (English PDF)

HY/T 0344-2022 (Determination of seawater trace dissolved reactive phosphorus - Flow analysis, solid phase extraction of phosphomolybdenum blue and spectrophotometric detection) is available as an English-translated PDF.

HY/T 0344-2022 — This document describes the method principle for the determination of trace active phosphate in seawater by flow analysis-phosphomolybdenum blue solid-phase extraction-spectrophotometry. procedures, calculation and recording of results, specifying reagents and materials, instruments and equipment, sample collection and storage, calculation and recording of results, precision Technical requirements for density and accuracy, quality assurance and quality control, etc. This document applies to the determination of nanomole per liter (nmol/L) level trace active phosphate in seawater.

Sample enrichment volume is 60mL , the detection limit of this method is 6nmol/L, and the lower limit of determination is 10nmol/L.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

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