GB/T 5009.218-2008 English PDF

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GB/T 5009.218-2008: Determination of multi pesticide residues in fruits and vegetables
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5009.218-2008	1079	Add to Cart	7 days	Determination of multi pesticide residues in fruits and vegetables	Valid

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Basic data

Standard ID: GB/T 5009.218-2008 (GB/T5009.218-2008)
Description (Translated English): Determination of multi pesticide residues in fruits and vegetables
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C53
Classification of International Standard: 67.040
Word Count Estimation: 49,495
Date of Issue: 2008-12-03
Date of Implementation: 2009-03-01
Regulation (derived from): National Standard Approval Announcement 2008 No.22 (Total No.135)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the 211 kinds of fruits and vegetables determination method (see Table A. 1 and A. 2), and the determination of the 107 kinds of fruits and vegetables for pesticide residues < Table B. 1) pesticide residues. This standard applies to spinach, onions 107 kinds of pesticide residues determination, onion, tomato, citrus, apples 211 kinds of pesticide residues determination and Apple, pears, cabbage, radish, lotus, onion, spinach. 211 kinds of fruits and vegetables pesticide residue determination method limit of quantitation (LOQ) Table C. 1 and Table C. 2, 107 kinds of fruits and vegetables pesticide residue determination method limit of quantitation (LOQ) Table D. 1.

GB/T 5009.218-2008: Determination of multi pesticide residues in fruits and vegetables

---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.
Determination of multi pesticide residues in fruits and vegetables ICS 67.040 C53 National Standards of People's Republic of China Fruits and vegetables in a variety of determining the amount of pesticide residues Posted 2008-12-03 2009-03-01 implementation People's Republic of China Ministry of Health Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Determination of fruits and vegetables 211 kinds of pesticide residues 1 2.1 Principle 1 2.2 Reagents and materials 1 2.3 Instruments and equipment 1 2.4 Sample Preparation and Storage 2 2.5 Determination of Step 2 2.6 Calculation Results 3 2.7 Precision 3 3 Determination of fruits and vegetables 107 kinds of pesticide residues 4 3.1 Principle 4 3.2 Reagents and materials 4 Instruments and equipment 4 3.3 3.4 Procedure 4 3.5 Calculation Results 5 3.6 Recovery and precision 6 Appendix A (normative) of fruits and vegetables 211 kinds of pesticide formulation types and grouping and solvent Table 7 Appendix B (normative) fruit and vegetable species and 107 kinds of pesticides formulated solvent 14 Annex C (informative) retention time of fruits and vegetables 211 kinds of pesticides, quantitative and qualitative selective ion linear range, Recoveries, precision, scope and limit of quantification 16 Appendix D (Informative Appendix) EI selected ion mode screening identified 107 kinds of fruits and vegetables tested pesticides and identification of ions Limit of quantification 27 Appendix E (normative) to select ion monitoring time fruits and vegetables 211 kinds of pesticides set parameters Table 31 Annex F (informative) 211 kinds of fruits and vegetables pesticide standard gas chromatography - mass spectrometry and selected ion chromatogram 34 Annex G (informative) 107 fruits and vegetables pesticide retention time on the column and the retention ratio of 36 Appendix H (informative) 107 kinds of fruits and vegetables in the total ion current 40 pesticides on different polar stationary phases Annex I (informative) three levels of fruits and vegetables 107 pesticides measured recovery and precision 41

Foreword

This standard Annex A, Annex B is normative appendix, Appendix C, Appendix D, Appendix E, Appendix F, Appendix G, Appendix H, Annex I to Informative appendix. This standard is proposed and administered by the People's Republic of China Ministry of Health. This standard by the People's Republic of China Ministry of Health is responsible for interpretation. This standard fruits and vegetables 211 Determination of pesticide residues by the People's Republic of China Jilin Exit Inspection and Quarantine, the Chinese people People's Republic of Tianjin Entry-Exit Inspection and Quarantine of Liaoning People's Republic of China, People's Republic of China Shanxi immigration Inspection and Quarantine Bureau responsible for drafting; determination of fruits and vegetables 107 kinds of pesticide residues by the Tianjin People's Republic of China Entry-Exit Inspection and Quarantine Bureau, Jilin People's Republic of China Entry-Exit Inspection and Quarantine of Liaoning People's Republic of China is responsible for drafting. The standard 211 kinds of fruits and vegetables in the determination of pesticide residues main drafters. Mou Jun, Wang Mingtai, Zouming Jiang, Xu Hong, Wu Jian, Zhaoqing Song, Wei Feng, Fu Yingwen, Handa Chuan; 107 kinds of fruits and vegetables - Determination of pesticide residues main drafters. Xu Hong, Lin Anqing, Toni boat, Mou Jun, Gu Long, Feng Wei, Zou Mingjiang, Munai Jiang. Fruits and vegetables in a variety of determining the amount of pesticide residues

1 Scope

This standard specifies the method for the determination of fruits and vegetables of 211 kinds of pesticide residues (see Table A.1 and A.2), as well as fruits and vegetables Determination of 107 pesticide residues (see Table B.1). This standard applies to spinach, green onions, tomatoes, citrus, apple measured 211 kinds of pesticide residues and apples, pears, cabbage, radish, lotus root, Green onions, spinach, onion 107 pesticide residues determination. Fruits and vegetables 211 kinds of pesticide residue limit of quantification measurement method (LOQ) Table C. 1 and Table C. 2, fruit and vegetables 107 kinds of pesticide residue limit of quantification measurement method (LOQ) Table D. 1. 2 Fruits and vegetables 211 kinds of pesticide residues determination 2.1 Principle Sample water - acetone extract homogeneous, methylene chloride liquid - liquid partition, gel column purification, and then by the activated carbon solid-phase column purification, washing Off was concentrated and dissolved constant volume, gas chromatography - mass spectrometry (GC-MS) measurement and validation, external standard. 2.2 Reagents and materials Unless otherwise specified, the reagents were of analytical grade and water for the two water conductivity 25 ℃ ≤0.10mS/m. 2.2.1 acetone (C3H6O). residual level. 2.2.2 dichloromethane (CH2Cl2). residual level. 2.2.3 ethyl acetate (C4H8O2). residual level. 2.2.5 n-hexane (like -C6H14). residual level. 2.2.6 Methanol (CH4O). residual level. 2.2.7 Benzene (C6H6). residual level. 2.2.8 Sodium chloride (NaCl). pure class distinctions. 2.2.9 anhydrous sodium sulfate (Na2SO4). 650 ℃ burning 4h, stored in a sealed container for later. 2.2.10 aqueous sodium chloride solution. 20g/L. 2.2.11 activated carbon SPE column (pesticarb). 0.5g, or rather who, prior to use 5mL hexane pre-rinse. 2.2.12 211 kinds of pesticide standards. purity ≥93.5%, see Table A. 1 and Table A. 2. 2.2.13 standard solution 2.2.13.1 standard stock solution. namely, accurately weighed amount of each pesticide standards, with acetone or appropriate solvent (see Table A.1 and Table A. 2) preparation of a concentration of standard stock solution 500μg/mL ~ 1000μg/mL of. The solution can be stored at 0 ℃ ~ 4 ℃ refrigerator 12 months. 2.2.13.2 intermediate standard working solution. According to the nature of the pesticide and its retention time is different from the 211 kinds of pesticide into A, B two Each pesticide standard stock solution group were accurate pipetting volume can be diluted to a suitable concentration with acetone A mixed group of standards needed Group B and intermediate working fluid intermediate mixed standard working solution. This solution can be stored for 6 months at 0 ℃ ~ 4 ℃ refrigerator. 2.2.13.3 mixed standard working solution. accurate Pipette a volume of A group of intermediate mixed standard working solution and intermediate mixed standard working group B Liquid, diluted with n-hexane may need to be suitable concentration of group A working standard solutions A and B mixed standard working solution. The solution can be 0 ℃ ~ 4 ℃ refrigerator for 1 month. 2.3 instruments and equipment 2.3.1 Gas chromatography - mass spectrometry. source with electron impact (EI). ......

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