GB/T 22957-2008 English PDF

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GB/T 22957-2008: Determination of nine glucocorticoids residues in fugu, eel and baked eel -- LC-MS-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22957-2008	229	Add to Cart	3 days	Determination of nine glucocorticoids residues in fugu, eel and baked eel -- LC-MS-MS method	Valid

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Basic data

Standard ID: GB/T 22957-2008 (GB/T22957-2008)
Description (Translated English): Determination of nine glucocorticoids residues in fugu, eel and baked eel -- LC-MS-MS method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 10,166
Date of Issue: 2008-12-31
Date of Implementation: 2009-05-01
Quoted Standard: GB/T 6379.1; GB/T 6379.2; GB/T 6682
Regulation (derived from): National Standard Approval Announcement 2008 No.26 (Total No.139)
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 puffer fish, eel and eel in prednisolone, prednisone, hydrocortisone, hydrocortisone, methyl prednisolone, betamethasone, dexamethasone, beclomethasone, acetate fludrocortisone nine kinds of glucocorticoid residues in liquid chromatography-tandem mass spectrometry. This standard applies to puffer fish, determination of eel and eel in nine glucocorticoid residues. This standard method detection limit: prednisolone, prednisone, hydrocortisone, hydrocortisone, methyl prednisolone, betamethasone, dexamethasone 0. 2��g/kg, beclomethasone, fludrocortisone acetate is 1. 0��g/kg.

GB/T 22957-2008: Determination of nine glucocorticoids residues in fugu, eel and baked eel -- LC-MS-MS method

---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 nine glucocorticoids residues in fugu, eel and baked eel. LC-MS-MS method ICS 67.050 X04 National Standards of People's Republic of China Puffer fish, eel and eel of nine glucocorticoid Determination of residues Liquid chromatography - tandem mass spectrometry Posted 2008-12-31 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The Standard Appendix A, Appendix B is an informative annex. This standard is proposed and managed by the State Administration of Quality Supervision, Inspection and Quarantine. This standard was drafted. People's Republic of China Qinhuangdao Exit Inspection and Quarantine. The main drafters of this standard. Liu Yongming, Li, Wu Yanping, Feng crown, Caoyan Zhong, Pang Guofang. Puffer fish, eel and eel of nine glucocorticoid Determination of residues Liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the puffer fish, eel and eel prednisolone, prednisone, hydrocortisone, hydrocortisone, methylprednisolone, betamethasone Pine, dexamethasone, beclomethasone, fludrocortisone acetate, nine kinds of glucocorticoids residues in liquid chromatography - tandem mass spectrometry. This standard applies to fish, eel and eel of nine glucocorticoids residues measured puffer. The standard method detection limit. prednisolone, prednisone, hydrocortisone, hydrocortisone, methylprednisolone, betamethasone, dexamethasone Of 0.2μg/kg; beclomethasone, fludrocortisone acetate, was 1.0μg/kg.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6379.1 measurement methods and results of Accuracy (trueness and precision) - Part 1. General principles and definitions (GB/T 6379.1-2004, ISO 5725-1.1994, IDT) GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat Of the basic methods of reproduction (GB/T 6379.2-2004, ISO 5725-2.1994, IDT) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Principle 3 After the puffer fish, eels, eel sample was added anhydrous sodium sulfate, extracted with ethyl acetate extract was concentrated and subjected to silica gel solid phase extraction column Purification, liquid chromatography - tandem mass spectrometer, external standard.

4 Reagents and materials

4.1 Water. GB/T 6682, level. 4.2 Methanol. chromatographically pure. 4.3 acetonitrile. chromatography. 4.4 ethyl acetate. chromatography. 4.5 formic acid. pure class distinctions. 4.6 hexane. chromatographically pure. 4.7 acetone. chromatography. 4.8 acetone - n-hexane. acetone + hexane (3 + 2). Measure 200mL acetone and 300mL hexane mix. 4.9 anhydrous sodium. AR. Burning 6h at 650 ℃ muffle furnace and stored in a desiccator. 4.10 prednisolone (CAS. 50-24-8), prednisone (CAS. 53-03-2), hydrocortisone (CAS. 50-23-7), cortisone (CAS. 53- 06-5), methylprednisolone (CAS. 83-43-2), betamethasone (CAS. 378-44-9), dexamethasone (CAS. 50-02-2), beclomethasone (CAS. 4419-39-0), fludrocortisone acetate (CAS. 514-36-3) standard substance. purity ≥98%. 4.11 1.0mg/mL standard stock solution. Weigh accurately take the right amount of each standard glucocorticoid substance, dissolved in methanol, were formulated as ......

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