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LST6131-2018: Inspection of grain and oils--Determination of phthalate esters in vegetable oils
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| LS/T 6131-2018 | English | 279 |
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Inspection of grain and oils--Determination of phthalate esters in vegetable oils
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LS/T 6131-2018
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Basic data | Standard ID | LS/T 6131-2018 (LS/T6131-2018) | | Description (Translated English) | Inspection of grain and oils--Determination of phthalate esters in vegetable oils | | Sector / Industry | Food & Beverage Industry Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.040 | | Word Count Estimation | 12,180 | | Date of Issue | 2018-01-08 | | Date of Implementation | 2018-03-01 | | Quoted Standard | GB/T 6379.1; GB/T 6379.2; GB/T 6682 | | Regulation (derived from) | State-Grain-Communication (2018) 1 | | Issuing agency(ies) | National Grain Administration | | Summary | This standard specifies gas chromatography-mass spectrometry methods for the determination of phthalate ester compounds in vegetable oils. This standard applies to the determination of phthalate ester compounds in vegetable oils. Including DMP-dimethyl phthalate, DEP-diethyl phthalate, DIBP-diisobutyl phthalate, DBP-dibutyl phthalate, DCHP-phthalic acid bicyclic Hexyl esters, DE-HP-di(2-ethylhexyl)-hexyl phthalate, DINP-diisodecyl phthalate, DIDP-diisononyl phthalate 8 phthalates Compound. The limit of quantification (LOQ) for this standard: 0.5 mg/kg for DINP and DIDP and 0.05 mg/kg for the rest. | LST6131-2018: Inspection of grain and oils--Determination of phthalate esters in vegetable oils
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Inspection of grain and oils.Determination of phthalate esters in vegetable oils
ICS 67.040
X04
People's Republic of China food industry standard
Grain and oil testing of phthalates in vegetable oils
Determination of compounds
Published on.2018-01-08
2018-03-01 implementation
National Food Bureau released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the National Grain Administration.
This standard is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270).
This standard was drafted. National Academy of Sciences, China Academy of Inspection and Quarantine.
The main drafters of this standard. Zhang Dong, Xue Yalin, Zhang Rui, Feng Feng, Li Xiujuan, Xia Xia.
Grain and oil testing of phthalates in vegetable oils
Determination of compounds
1 Scope
This standard specifies the gas chromatography-mass spectrometry method for the determination of phthalate compounds in vegetable oils.
This standard applies to the determination of phthalate compounds in vegetable oils. Including DMP-dimethyl phthalate, DEP-o-benzene
Diethyl dicarboxylate, DIBP-diisobutyl phthalate, DBP-dibutyl phthalate, DCHP-dicyclohexyl phthalate, DE-
HP-di(2-ethyl)hexyl phthalate, DINP-diisodecyl phthalate, DIDP-diisodecyl phthalate 8 kinds of phthalic acid
Formate compound.
The limit of quantitation (LOQ) of this standard. 0.3 mg/kg for DINP and DIDP, and the rest is 0.05 mg/kg.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) Part 1. General and definition
GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard method of measurement
Basic method of sex and reproducibility
GB/T 6682 Analytical laboratory water specifications and experimental methods
3 Principle
After the sample was extracted and purified, it was measured by a gas chromatography-mass spectrometer. Using characteristic ion monitoring mode (SIM) to retain time
The abundance of the inter- and ion fragments is qualitative, and the standard area is used to quantify the peak area of the ion.
4 reagents and materials
All organic reagents used in this standard should be subjected to a blank test before use. If the background value is higher than the limit of quantitation, it should be re-steamed until this
The bottom value is below the limit of quantitation.
Unless otherwise stated, analytically pure reagents should be used in the analysis. Water is the recommended secondary water for GB/T 6682.
4.1 Acetonitrile. chromatographically pure.
4.2 Acetone. chromatographically pure.
4.3 Methanol. chromatographically pure.
4.4 Standards. See Appendix A.
4.5 Standard stock solution. Weigh the standard (4.4) to the nearest 0.1mg, and make a standard stock solution of 1000mg/L with acetonitrile (4.1).
Keep the refrigerator at 4 °C in the dark.
4.6 Standard working solution. Dilute the standard stock solution (4.5) with acetonitrile to a concentration of 0.1mg/L, 0.5mg/L, 1.0mg/L,
2.0 mg/L, 5.0 mg/L, 10.0 mg/L standard working solution.
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