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SN/T 1115-2002: Method for the determination of oxadiazon residues in fruits for import and export
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1115-2002 | English | 559 |
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Method for the determination of oxadiazon residues in fruits for import and export
| Obsolete |
SN/T 1115-2002
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PDF similar to SN/T 1115-2002
Basic data | Standard ID | SN/T 1115-2002 (SN/T1115-2002) | | Description (Translated English) | Method for the determination of oxadiazon residues in fruits for import and export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X24 | | Word Count Estimation | 14,137 | | Date of Issue | 2002-05-20 | | Date of Implementation | 2002-11-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China | | Summary | This standard specifies the import and export of fruits Oxadiazon residues sampling, sample preparation and gas chromatography mass spectrometry and confirmatory methods. This standard applies to export citrus fruits, apples Oxadiazon residue test. | SN/T 1115-2002: Method for the determination of oxadiazon residues in fruits for import and 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.
Method for the determination of oxadiazon residues in fruits for import and export
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Residues of oxaloin in imported and exported fruits
Testing method
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Implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard is in accordance with GB/T 1.1-2000 "Standardization Work Guide Part 1. Standard Structure and Writing Rules" and
SN/T 0001-1995 "Basic regulations for the preparation of pesticides, veterinary drug residues and biotoxin test methods for export commodities"
Written by the line. The measurement method is based on the relevant literature at home and abroad, and has been developed after research, improvement and verification. This standard is also formulated
Sampling and sample preparation methods.
The lower limit of determination is based on the international maximum limit on the amount of oxalochlorone residues in fruits and the sensitivity of the assay.
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted by the Hunan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Li Yongjun, Huang Zhiqiang, Xiong Fang, Zhang Ying, Dai Hua.
This standard is the first industry standard for entry-exit inspection and quarantine.
Method for testing oxalicone residues in fruits for import and export
1 Scope
This standard specifies the sampling, sample preparation and gas chromatography-mass spectrometry and confirmation methods for the determination of oxalicone residues in imported and exported fruits.
This standard applies to the import and export of citrus and apple oxalic acid residues.
2 sampling and sample preparation
2.1 Inspection lot
No more than 1500 pieces for an inspection lot.
Goods in the same inspection lot should have the same characteristics, such as packaging, marking, origin, specifications and grades.
2.2 Number of samples (see Table 1)
Table 1
Minimum number of samples in batch
1~25 1
26~100 5
101～250 10
251~1500 15
2.3 Sampling method
The number of samples according to 2.2 is randomly selected and opened one by one. Take at least 500g of each piece as the original sample, the total amount of the original sample shall not be
Less than 2kg. After the seal, mark the mark and send it to the laboratory in time.
2.4 Sample preparation
The original sample was taken out to 1 kg, and the edible portion was taken, crushed by a tissue masher, and divided into two parts, and placed in a clean container as
Sample. Seal and mark.
2.5 Sample storage
The sample was stored frozen below -18 °C.
Note. Samples must be protected from contamination or changes in residue levels during sampling and sample preparation operations.
3 Determination method
3.1 Method summary
The oxaloxan residue in the sample is extracted with benzene-n-hexane and then purified by a small column of activated carbon, using a gas phase with a mass selective detector.
The chromatograph was measured and confirmed, and the external standard method was used for quantification.
3.2 Reagents and materials
All reagents were of analytical grade and water was distilled water unless otherwise specified.
3.2.1 Benzene. heavy distillation.
3.2.2 n-hexane. heavy distillation.
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