SN/T 3846-2014 English PDF

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SN/T 3846-2014: Determination of the carbon isotope ratio in apple and apple juice concentrate for export
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3846-2014	209	Add to Cart	3 days	Determination of the carbon isotope ratio in apple and apple juice concentrate for export	Valid

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Basic data

Standard ID: SN/T 3846-2014 (SN/T3846-2014)
Description (Translated English): Determination of the carbon isotope ratio in apple and apple juice concentrate for export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X24
Classification of International Standard: 67.080.10
Word Count Estimation: 8,845
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 method for apple juice and apple juice concentrate, fructose, fruit stable carbon isotope ratio measurement of stable isotope ratio mass spectrometry. This standard applies to apples and determination juice, fructose, fruit sta

SN/T 3846-2014: Determination of the carbon isotope ratio in apple and apple juice concentrate 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.
(Exports of apples and apple juice concentrate carbon isotope ratio - measured) People's Republic of China Entry-Exit Inspection and Quarantine Standards Exports of apples and apple juice concentrate stable The determination of carbon isotope ratios 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. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shaanxi Exit Inspection and Quarantine, Chinese Academy of Inspection and Quarantine. The main drafters. Zhang Lin, Cai Yan, Ligao Hua, Individual Students Liang Liang, Lee decided. Exports of apples and apple juice concentrate stable The determination of carbon isotope ratios

1 Scope

This standard specifies the stable isotope ratio mass spectrometry apple juice and apple juice concentrate, fructose, fruit stable carbon isotope ratio method. This standard applies to apples and determination juice, fructose, fruit stable carbon isotope ratio of apple juice concentrate.

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. GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD).

3 Method summary

Apples and concentrated apple juice after, fructose, fruit juice prepared by the elemental analyzer into the combustion oxidation, chemical purification and separation by GC After using the stable isotope ratio mass spectrometer stable carbon isotope ratio (13C/12C), by comparison with standard material determines juice, fructose, fruit δ13C values.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682 regulations. 4.1 calcium hydroxide. 4.2 acetone. ≥99.5%. 4.3 sulfuric acid. 95% to 98% (mass fraction). 4.4 0.1mol/L sulfuric acid. Take 2.8mL of sulfuric acid (4.3) diluted with water to 500mL. 4.5 Standard olive oil. C = 54.00%, δ13CPDB = -28.51 ± 0.16 ‰. (CatNo.B2172-Batch3130). 4.6 sorbent (ChromosorbW30-60Mesh). 4.7 Tin Cup. 8mm × 5mm.

5 Instruments

5.1 stable isotope ratio mass spectrometer, δ13C measurement accuracy. 0.1 ‰. Carrier gas. Helium, 99.999% purity; assisting gas. Oxygen purity 99.999%. 5.2 Balance. a sense of the amount of 0.01mg. Centrifuge 5.3. more than 3000r/min. 5.4 food cooking machine. 5.5 5μL pipette. 5.6 centrifuge tubes (resistant to organic solvents). Volume 50mL. ......

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