ISO/TS 11370:2000
Water quality — Determination of selected organic plant-treatment agents — Automated multiple development (AMD) technique
Water quality — Determination of selected organic plant-treatment agents — Automated multiple development (AMD) technique
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 27
- Дата публикации:
- 16 ноября 2000 г.
- Издание:
- ISO TS 11370 edition 1 version 1
- ICS:
- 13.060.50
The method described in this Technical Specification is applicable to the determination of selected plant-treatment agents and some of their main degradation products (metabolites) in drinking water, with a validated reporting limit of about (see examples in Table 1). The method may be extended to include additional substances and ground water, provided the method is validated for each individual case. The selection of the plant-treatment agents and main degradation products in Table 1 and Table A.2 has been made according to the knowledge at the time of the interlaboratory trial (1992). Data for some other substances are given in annex A.
Abstract
Overview
ISO/TS 11370:2000 specifies a laboratory method for the determination of selected organic plant‑treatment agents (pesticides/herbicides) and some of their main degradation products in drinking water using the Automated Multiple Development (AMD) variant of high‑performance thin‑layer chromatography (HPTLC). The procedure combines solid‑phase extraction on RP‑C18 sorbent with AMD separation and diffuse reflectance UV detection. The method has a validated reporting limit of about 0.05 µg/L and can be extended to additional substances and to groundwater provided each extension is validated.
Key topics and technical requirements
- Sample preparation: Solid‑phase extraction (SPE) on RP‑C18 cartridges (conditioning, sample volume and flow control, elution and concentration).
- Separation and detection: HPTLC with the AMD technique for reproducible multi‑step development and diffuse in‑situ reflection measurement at UV wavelengths.
- Quality and calibration: Multipoint calibration, recovery checks, expression of results, and interlaboratory precision data (annexes provide recovery and trial data).
- Reagents and apparatus: Use of HPLC/AMD grade solvents, precoated silica HPTLC plates (prewashed), AMD system with vacuum pump, UV scanner (photomultiplier for
Технические детали
- Технический комитет
- ISO/TC 147/SC 2 - Physical, chemical and biochemical methods
- SKU
- ISO/TS 11370:2000
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