GB/T 37860-2019 in English
VALIDPaper,board and paper products—Determination of phthalates
- Issued on:2019-08-30
- Implemented on:2020-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 37860-2019纸、纸板和纸制品 邻苯二甲酸酯的测定》由TC141（全国造纸工业标准化技术委员会）归口，主管部门为中国轻工业联合会。
Introduction
GB/T 37860-2019 Standard Overview
GB/T 37860-2019, the national standard of the People's Republic of China, specifies the gas chromatography-mass spectrometry (GC-MS) method for the determination of 19 phthalates in paper, paperboard and paper products. This standard is applicable to the detection of phthalates in various paper and products, including toilet paper, wet wipes, diapers and other samples.
Background of Standard Formulation
Phthalates are plasticizers widely used in plastics, resins and adhesives. Due to their potential environmental and health risks, countries have increasingly stringent requirements for the limit of phthalates in paper products. This standard was proposed by the China Light Industry Federation and is under the jurisdiction of the National Technical Committee for Standardization of Paper Industry (SAC/TC141). It aims to provide the industry with scientific and unified detection methods.
Technology Evolution Analysis
Compared with the old version of the standard, GB/T 37860-2019 has achieved technological breakthroughs in the following aspects:
- GC-MS Hybrid Technology Optimization: The use of the characteristic selected ion monitoring scan mode (SIM) significantly improves the detection sensitivity and accuracy.
- Sample pretreatment process improvement: Ultrasonic assisted extraction greatly shortens the analysis time and reduces the amount of reagents.
- Qualitative and quantitative method innovation: The combination of full scan mode (TIC) and selected ion monitoring mode (SIM) ensures the reliability of qualitative results, and the external standard method is used for quantification.
Comparison table of standard frameworks
| Project | GB/T 37860—2019 | International similar standards |
|---|---|---|
| Detection range | 19 phthalates, with different limits of quantification (some are 2.0-50.0 mg/kg) | Usually covers 16-18 ester substances |
| Detection method | Gas chromatography-mass spectrometry (GC-MS), characteristic ion monitoring mode (SIM) | Mostly using GC-FID or LC-MS methods |
| Sample processing | Ultrasonic assisted extraction, suitable for a variety of paper product characteristics | Traditional Soxhlet extraction |
Implementation suggestions
Laboratory conditions requirements:
- Equipped with Gas chromatograph-mass spectrometer (GC-MS) to meet the parameter requirements specified in the standard.
- Have secondary or above analytical laboratory qualifications to ensure data reliability.
- Operators need to undergo professional training and be familiar with sample pretreatment and instrument operation procedures.
Precautions in practical application:
- For complex samples (such as wet wipes and toilet paper), it is recommended to dry them first and then crush them to ensure extraction efficiency.
- Pay attention to the ultrasonic extraction temperature and time to avoid sample decomposition or volatilization.
- Regularly calibrate the instrument, especially the ionization source and interface temperature of the mass spectrometer.
Quality control suggestions:
- Use standard substances to establish a complete calibration curve and perform periodic verification.
- Set up a blank control for each batch of samples to ensure the validity of the analysis results.
- For high-content samples, use the dilution method to avoid instrument overload.
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