SN/T 1050-2014 English PDF

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SN/T 1050-2014: Method for the determination of antioxidants in oils and fats for export. High performance liquid chromatography
Status: Valid

SN/T 1050: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1050-2014	159	Add to Cart	3 days	Method for the determination of antioxidants in oils and fats for export. High performance liquid chromatography	Valid
SN/T 1050-2002	279	Add to Cart	3 days	Ago fats Determination of the anti-oxidant. Liquid chromatography	Obsolete

Similar standards

GB/T 1536   GB/T 1535   NY/T 230   SN/T 5652.7   SN/T 5651   SN/T 5652.19   

Basic data

Standard ID: SN/T 1050-2014 (SN/T1050-2014)
Description (Translated English): Method for the determination of antioxidants in oils and fats for export. High performance liquid chromatography
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X14
Classification of International Standard: 67.020
Word Count Estimation: 6,697
Date of Issue: 12/1/2014
Date of Implementation: 5/1/2015
Older Standard (superseded by this standard): SN/T 1050-2002
Quoted Standard: GB/T 6682
Regulation (derived from): State-Quality-Inspection-accreditation [2014] 614
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies a high performance liquid chromatographic method Importers and oil of 11 antioxidants. This standard applies to salad oil and margarine and other fats propyl gallate (PG), 2, 4, 5- trihydroxybenzene butanone (THBP), tertiary butyl

SN/T 1050-2014: Method for the determination of antioxidants in oils and fats for export. High performance liquid chromatography

---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.
(Export oil antioxidants by HPLC) People's Republic of China Entry-Exit Inspection and Quarantine Standards Instead of the SN/T 1050-2002 Determination of antioxidant oil exports High Performance Liquid Chromatography Issued on. 2014-11-19 2015-05-01 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. Instead of the standard SN/T 1050-2002 "Importers grease antioxidant measured liquid chromatography." This standard compared with SN/T 1050-2002, the main technical changes are as follows. --- Can be detected by the nine kinds of antioxidant species increased to 11 kinds; --- The column C18 column [250mm × 4.6mm (inner diameter), 10μm or equivalent person], modify C18 column [250mm × 4.6mm (Inner diameter), 5μm or equivalent person]. This standard was drafted. People's Republic of China Hubei Exit Inspection and Quarantine. The main drafters of this standard. Ye Cheng, Wang Peng, Zhu Shang Yin, Zhao Asia, Fu Xiaofang, Li Jing, Guoshao Fei, Zhang Lin. Determination of antioxidant oil exports High Performance Liquid Chromatography

1 Scope

This standard specifies a high performance liquid chromatographic method Importers and oil of 11 antioxidants. This standard applies to salad oil and margarine and other fats propyl gallate (PG), 2,4,5- trihydroxybenzene butanone (THBP), tert-butyl Yl hydroquinone (TBHQ), norepinephrine-dihydro-nordihydroguaiaretic acid (NDGA), butylated hydroxy anisole (BHA), 2,6- di-tert-butyl-4-hydroxymethyl Phenol (Ionox-100), octyl gallate (OG), 2,6- di-tert-butyl-p-cresol (BHT), gallic acid lauryl acrylate (DG), no Gallic acid isoamyl (IAG), 4- hexylresorcinol 11 kinds of antioxidant testing.

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. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Determination

3.1 Method summary Oil samples were dissolved with hexane, extract antioxidant with acetonitrile. After the extract was concentrated, with isopropanol to volume with ultraviolet band Detector (or diode array detector) is measured by HPLC, external standard. 3.2 Reagents and materials Unless otherwise specified, water GB/T 6682 provided a water, reagents were of analytical grade. 3.2.1 n-hexane. analytical, chromatographic grade. 3.2.2 acetonitrile. chromatography. 3.2.3 isopropanol. analytical, chromatographic grade. 3.2.4 Methanol. chromatographically pure. 3.2.5 acetic acid. AR. 3.2.6 Distilled water. The second distillation. 3.2.7 acetonitrile saturated with n-hexane. n-hexane added acetonitrile saturated. 3.2.8 n-hexane saturated acetonitrile. hexane saturated acetonitrile was added. 3.2.9 Antioxidants standard stock solution (1mg/mL). Weigh 11 kinds of anti-oxidants each 50.0mg, with isopropanol - methanol (11 body Volume ratio) was dissolved constant volume to 50mL, shake, 0 ℃ ~ 4 ℃ stored. 3.2.10 antioxidant standard working solution. isopropanol - diluted with methanol (11 by volume) to a desired concentration to prepare 11 kinds of antioxidants mark Quasi series solution 1mg/L, 10mg/L, 20mg/L, 50mg/L, 100mg/L, 200mg/L. 3.3 instruments and equipment 3.3.1 High performance liquid chromatograph. with a UV detector (or diode array detector). ......

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