GB/T 39671-2020 in English
VALIDProchloraz
- Issued on:2020-12-14
- Implemented on:2021-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
| Standard No: | GB/T 39671-2020 |
| Document status: | VALID |
| Title in English: | Prochloraz |
| Title in Chinese: | 咪鲜胺 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-12-14 |
| Implemented on: | 2021-07-01 |
| ICS Classification: | 65.100.30-Fungicides |
| Chinese Classification: | G25-Pesticide |
| Professional Classification: | GB-National Standard |
| Related Keywords: | integrated standard unified testing system prochloraz
standard technical improvement points standard architecture prochloraz introduction core content standard revision revision dimensions gradient elution technology |
| Related Topics: | remove microphone
thick rice amine Prochloraz limit Watmi Amine+ Yixian Amine version Amine + Edition Mipu+ Fragrant Mi convex Hami Mississippi Amino acid content X-ray microphone GBT39671 GB/T 39671-2020 |
本标准规定了咪鲜胺原药、乳油、水乳剂的要求、试验方法、验收和质量保证期以及标志、标签、包装、储运。
本标准适用于咪鲜胺原药、乳油、水乳剂产品的质量控制。
注: 咪鲜胺的其他名称、结构式和基本物化参数参见附录A。
Introduction
Core content of the standard revision
| Revision dimensions | 2008 version of the standard | 2020 version of the standard | Technical improvement points |
|---|---|---|---|
| Standard architecture | 3 independent standards | Three-in-one integrated standard | Unified testing system |
| Prochloraz technical indicator | Purity ≥95.0% | Purity ≥97.0% | Improvements in purification technology |
| Trichlorophenol limit | TC≤0.5% | TC≤0.2% | Toxicity control tightened |
Key detection method optimization
Liquid chromatography (arbitration method)
A gradient elution system of acetonitrile + ammonium acetate aqueous solution was used, the chromatographic column was C18 (250mm×4.6mm), and the detection wavelength was 240nm. The method quantitative limit reached 1.08×10-3 mg/mL, and the relative deviation of TC≤1.2% and preparation≤0.8%.
2,4,6-Trichlorophenol Detection
The new method increases the detection sensitivity by 50%, and the limit of emulsion/water emulsion is uniformly tightened to ≤0.1%.
Implementation recommendations
- Quality control cycle: Key items such as trichlorophenol and thermal storage stability need to be tested every 3 months
- Method validation: The laboratory should conduct a chromatographic system suitability test, with the number of theoretical plates ≥5000
- Storage management: The original drug needs to be packed in an iron barrel lined with a plastic bag, and the preparation should avoid using transparent containers
Technology evolution analysis
The merger of standards reflects the trend of maturity of preparation technology, the improvement of purity indicators reflects the breakthrough of crystallization technology, and the tightening of trichlorophenol limits responds to the requirements of international REACH regulations. The new detection method uses HPLC gradient elution technology, which improves the separation efficiency by 30% compared with the 2008 version of isocratic elution.
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