GB/T 33611-2017 in English
VALIDTextiles―Determination of short chain 4-(1,1,3,3-tetramethylbutyl) phenol ethoxylate
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$78.00
| Standard No: | GB/T 33611-2017 |
| Document status: | VALID |
| Title in English: | Textiles―Determination of short chain 4-(1,1,3,3-tetramethylbutyl) phenol ethoxylate |
| Title in Chinese: | 纺织品 短链对特辛基苯酚乙氧基化物的测定 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-05-12 |
| Implemented on: | 2017-12-01 |
| ICS Classification: | 59.080.01-Textiles in general |
| Chinese Classification: | W04-Basic standards and general methods |
| Professional Classification: | GB-National Standard |
| Related Keywords: | ethoxylate introduction introduction gb/t
short-chain tert-octylphenol ethoxylate short chain relative standard deviation various textile products detection |
| Related Topics: | Textile short-chain p-tertylphenol ethoxylate
phenoxide gb t33611 2017 GB/T 33611 Textile Benzene Testing as33611 GB/T 33611-2017 as 33611 GB/T+33611-2017 phenoxide GBT33611 GB/T 33611-2017 p-teroctylphenol phenol textile Purity test method of o-ethoxyphenol |
《GB/T 33611-2017纺织品 短链对特辛基苯酚乙氧基化物的测定》由TC209（全国纺织品标准化技术委员会）归口，TC209SC1（全国纺织品标准化技术委员会基础标准分会）执行，主管部门为中国纺织工业联合会。
Introduction
Introduction
GB/T 33611—2017 "Determination of Short-chain p-tert-octylphenol Ethoxylates in Textiles" is a standard method for the detection of specific chemical substances in textile products in China. This standard specifies the use of normal phase high performance liquid chromatography (HPLC) to determine short-chain p-tert-octylphenol ethoxylates in textiles, including three types: monoethoxylate, diethoxylate and triethoxylate.
Background and significance of standard formulation
As the textile industry continues to increase its requirements for product quality and safety, it has become particularly important to accurately determine the content of specific chemical substances in textiles. As a potential environmental pollutant and a substance that may have an impact on human health, the demand for the detection of short-chain p-tert-octylphenol ethoxylates is becoming increasingly urgent. The formulation of this standard fills the gap in this field in China and provides a scientific basis for the quality control of textile products.
Technical Specification Interpretation
| Project | Specific content |
|---|---|
| Scope of application | Determination of short-chain 4-tert-octylphenol ethoxylates in various textile products |
| Detection method | Normal phase high performance liquid chromatography (HPLC) |
| Instrument requirements | High performance liquid chromatograph with fluorescence detector |
| Extraction solvent | Methanol, assisted by ultrasonic extraction technology |
| Quantitative method | External standard method |
Comparative analysis of standard frameworks
Compared with similar international standards, GB/T 33611—2017 has the following characteristics:
| Dimension | GB/T 33611 | Comparison with international standards |
|---|---|---|
| Detection object | Short-chain 4-tert-octylphenol ethoxylate | Same |
| Detection method | HPLC | Consistent |
| Precision requirement | Relative standard deviation≤10% | Internationally accepted level |
| Lower limit of determination | 0.5 mg/kg | Meets actual detection needs |
Implementation suggestions
1. Laboratory conditions:Equipped with high performance liquid chromatography (HPLC) and fluorescence detector, ultrasonic extraction device and rotary evaporator. Laboratory personnel need to undergo professional training.
2. Sample pretreatment steps:Take a representative sample, cut it into 5mm×5mm pieces, weigh 2g of sample and place it in a stoppered conical flask, add 50mL of methanol, and extract it in an ultrasonic generator for 40 minutes. Transfer the extract to a round-bottom flask, wash the residue with 10mL of methanol and combine the extract, concentrate it to nearly 1mL, then make it dilute to 10mL, filter it and test it with HPLC.
3. Quantitative analysis:Quantitative analysis is performed by external standard method using standard working curve. The calculation formula is as follows: $$ X=\frac{(A-A_{\circ})\times c_{\circ}\times V}{A_{\circ}\times m} $$ Where, $X$ is the content of each short-chain tert-octylphenol ethoxylate in the sample (mg/kg).
4. Precision control: The relative standard deviation of the test results within the same laboratory should be ≤10%, and the relative deviation between different laboratories should be ≤20%.
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