YY/T 1740.3-2024 in English
VALIDClinical mass spectrometer-Part 3 : Inductively coupled plasma mass spectrometry
- Issued on:2024-02-07
- Implemented on:2025-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
本文件规定了医用电感耦合等离子体质谱仪的要求、标签、使用说明、包装、运输和贮存,描述了相应的试验方法。
本文件适用于医用电感耦合等离子体质谱仪(ICP-MS),该仪器主要用于分析人源样本中的无机元素,如钾、钙、锌、碘等。
Introduction
Analysis of the core technical requirements of the standard
| Technical indicators | Required values | Test methods | Clinical significance |
|---|---|---|---|
| Mass resolution | <0.8u(Li/In/Tl) | 10% peak width method | Ensure the mass spectrum peak separation between elements |
| Detection sensitivity | Hg≥1×106cps/(mg/L) | Signal-to-noise ratio method | Ensure the detection capability of trace elements |
| Oxide Interference | <3.0%(CeO+/Ce+) | Standard Solution Method | Control Polyatomic Ion Interference |
Key Performance Test Methods
Take the carryover contamination rate test of Inductively Coupled Plasma Mass Spectrometer as an example: high/low concentration alternating injection mode is required, calculated by the formula Ki=(Ai4-Ai6)/(Ai3-Ai6)×100%, and the requirement is ≤0.05%. This indicator directly affects the accuracy of continuous detection of clinical samples.
Key points for standard implementation
- The laboratory environment must meet the requirements of constant temperature and humidity of 15-25℃ and humidity ≤75%
- The software system must contain a library of standard analysis methods for more than 12 elements (including Li, Hg, Pb, etc.)
- Regularly verify quality stability (8h drift < ±0.05u) and measurement stability (4h range < 10%)
Technology evolution analysis
Compared with the GB/T 34826-2017 general ICP-MS standard, this document adds:
1. Specific requirements for whole blood matrix samples (component proportion > 85%)
2. Supporting detection methods for clinical element groups (12 items including K/Ca/Fe/Se)
3. EMC/safety requirements specific to medical devices (referenced to standards such as YY0648)

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