|
US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21322-2007: Determination of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food -- High performance liquid chromatography method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21322-2007 | English | 259 |
Add to Cart
|
3 days [Need to translate]
|
Determination of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food -- High performance liquid chromatography method
| Valid |
GB/T 21322-2007
|
PDF similar to GB/T 21322-2007
Basic data | Standard ID | GB/T 21322-2007 (GB/T21322-2007) | | Description (Translated English) | Determination of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food -- High performance liquid chromatography method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.120 | | Word Count Estimation | 10,194 | | Date of Issue | 2007-10-29 | | Date of Implementation | 2008-04-01 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | China National Standard Approval Announcement2007 No.13 (Total No.113) | | 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 swine, chicken, edible fish tissue 3-sample preparation and HPLC acid (3-mETHYL-QUINOXALINE-2-CARBOXYLIC ACID, mQCA) residues of-methylquinoxaline -2 Determination. This standard applies to pigs, chicken muscle, quantitative detection of liver and fish muscle mQCA residues. | GB/T 21322-2007: Determination of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food -- High performance liquid chromatography 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 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food. High performance liquid chromatography method
ICS 67.120
X04
National Standards of People's Republic of China
Food of animal origin in 3-methyl-quinoxaline-2-carboxylic acid
Residues HPLC
Posted 2007-10-29
2008-04-01 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 of People's Republic of China.
This standard was drafted. Huazhong Agricultural University, Chinese Academy of Inspection and Quarantine.
The main drafters of this standard. Yuanzong Hui, Wu Yujie, Taoyan Fei, Wang Yulian, Huang Lingli, Chen Dongmei, Peng Tao, Liuzhen Li, Peng Dapeng,
Diamond red.
Food of animal origin in 3-methyl-quinoxaline-2-carboxylic acid
Residues HPLC
1 Scope
This standard specifies the pig, chicken, fish edible tissues of 3-methyl-quinoxaline-2-carboxylic acid (3-methyl-quinoxaline-2-carboxylic
Sample preparation and high performance liquid chromatography method for measuring acid, MQCA) residue detection.
This standard applies to pigs, chicken muscle, liver and fish muscle MQCA quantitative detection of residues.
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 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987)
Principle 3
Muscle or liver tissue samples hydrolyzed in an acidic solution, and then extracted with ethyl acetate, phosphate buffer solution back-extracted with a mixed anion
After sub-SPE column purification, high performance liquid chromatography (UV detector) measurement, external standard.
4 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682 regulations.
4.1 acetonitrile. chromatography.
4.2 ethyl acetate.
4.3 metaphosphate. pure class distinctions.
4.4 phosphoric acid. pure class distinctions.
4.5 formic acid. pure class distinctions.
4.6 dipotassium hydrogen.
4.7 Partial phosphate methanol solution. Accurately weigh 50.0 g of metaphosphoric acid, water was added and heated to dissolve, methanol was added 200mL After cooling, add water to
Dilute to 1000mL, mixing, storage at room temperature, valid for one month.
4.8 Sodium hydroxide solution (0.05mol/L). Weigh accurately sodium hydroxide 0.5g, dissolved in distilled water, after cooling dilute to 250mL, often
Temperature storage period of three months.
4.9 formic acid - methanol solution. accurate amount of formic acid 1mL to 50mL volumetric flask, add methanol diluted and set the volume to 50mL, mix, now
Service is used.
4.10 phosphate buffer (0.01mol/L). Weigh accurately take dipotassium hydrogen (K2HPO4 · 3H2O) 2.28g, add water, 900mL dissolve,
Phosphoric acid to adjust the pH to 7.0, add water to 1000mL, stored at room temperature, valid for one month.
4.11 Standard. 3-methyl quinoxaline-2-carboxylic acid content higher than 98%.
4.12 Standard stock solution. Weigh accurately MQCA10.0mg, dubbed methanol concentration 1.0mg/mL standard stock solution, 4 ℃ dark
, Valid for six months.
4.13 SPE column MAX column (mixed anion exchange column). Specification 60mg, 3mL.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21322-2007_English be delivered?Answer: Upon your order, we will start to translate GB/T 21322-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 21322-2007_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 21322-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|