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SN/T 0152-2014: Method for inspection of 2, 4-D residues in fruit for export
Status: Valid SN/T 0152: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0152-2014 | English | 519 |
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Method for inspection of 2, 4-D residues in fruit for export
| Valid |
SN/T 0152-2014
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| SN/T 0152-1992 | English | RFQ |
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Method for inspection of 2, 4-Dresidue in fruit for export
| Obsolete |
SN/T 0152-1992
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PDF similar to SN/T 0152-2014
Basic data | Standard ID | SN/T 0152-2014 (SN/T0152-2014) | | Description (Translated English) | Method for inspection of 2, 4-D residues in fruit for export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | B31 | | Classification of International Standard | 67.080.10 | | Word Count Estimation | 20,273 | | Older Standard (superseded by this standard) | SN 0152-1992 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the gas chromatographic determination of apples, pears, bananas, pineapple and citrus 2, 4 pesticide residues. This standard applies to the determination of pesticide residues in 2, 4 apples, pears, bananas, pineapple and citrus. | SN/T 0152-2014: Method for inspection of 2, 4-D residues in fruit for export---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Fruit for export 2, 4 - Residue testing methods)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Replacing SN 0152-1992
Fruit for export 2,4 residues in
Issued on. 2014-01-13
2014-08-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Distribution of this document
Institutions do not assume the responsibility to identify these patents.
This standard replaces SN 0152-1992 "fruit for export 2,4-D residues in."
This standard compared with SN 0152-1992, the main changes are as follows.
--- Text structurally different. SN 0152-1992 according to GB/T 1.1-1987 prepared, according to the present standard GB/T 1.1-2009 and
GB/T 20001.4-2001 write;
--- Expanding the scope of the detection object;
--- Delete the sample content (see the 1992 version of Chapter 2);
--- Increasing the sample stored content (see Chapter 6);
--- Reagent derived from "n-butanol and boron trifluoride solution" to "n-butanol and concentrated sulfuric acid";
--- Florisil - alumina column into florisil solid phase extraction columns for sample clean-up;
--- Increasing the lower limit of determination and recovery (see Chapter 8).
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Hunan Exit Inspection and Quarantine.
The main drafters of this standard. Dingley, Fushan Liang, Zhang Fan, Jiao Yanna, Yanhong Fei, GONG Qiang, Zhu Shaohua, Zhang Ying.
This standard replaces the standards previously issued as follows.
--- SN 0152-1992.
Fruit for export 2,4 residues in
1 Scope
This standard specifies the gas chromatographic determination of apples, pears, bananas, pineapple and citrus 2,4 pesticide residues.
This standard applies to the determination of pesticide residues in 2,4 apples, pears, bananas, pineapple and citrus.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
Samples with phosphoric acid - acetone solvent extraction, liquid - liquid partition purification, concentrated sulfuric acid as a catalyst, with n-butanol 2,4 2,4 esterified
Butylate, and then Florisil SPE column purification, determined by gas chromatography, external standard.
4 Reagents and materials
Unless otherwise specified, reagents were of analytical grade, test water should be consistent with GB/T 6682 three water indicators.
4.1 acetone. HPLC grade.
4.2 phosphoric acid. 85%.
4.3 chloroform.
4.4 ether.
4.5 hydrochloric acid. 36% to 38%.
4.6 Concentrated sulfuric acid. pure class, 95% to 98%.
4.7 n-butanol.
4.8 hexane. HPLC grade.
4.9 sodium hydroxide.
4.10 disodium hydrogenphosphate.
4.11 anhydrous sodium. 650 ℃ burning after 4h, stored in a desiccator.
4.12 phosphoric acid (11).
4.13 aqueous hydrochloric acid (11).
4.14 phosphate solution. Weigh 2g of sodium hydroxide (4.9) and 44g of disodium hydrogen phosphate (4.10), dissolved in water and diluted to 1000mL.
4.15 sodium sulfate solution (20g/L). Weigh 2g of anhydrous sodium sulfate (4.11) were dissolved in 100mL water.
4.16 acetone - n-hexane (19).
4.17 2,4-D standards. purity not less than 99.0%, CAS Number. 94-75-7.
4.18 2,4-standard stock solution. Weigh accurately 0.01000g2,4- drop standard (4.17) in 10mL flask with about 8mL prop
One was dissolved with acetone to volume, standard stock solution to give a concentration of 1.0mg/mL, and stored at 4 ℃ refrigerator.
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