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LST6136-2019: Inspection of grain and oils - Determination of manganese, copper, zinc, rubidium, strontium, cadmium, lead in rice - Rapid extraction coupled with inductively coupled plasma mass spectrometry Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
LST6136-2019: Inspection of grain and oils - Determination of manganese, copper, zinc, rubidium, strontium, cadmium, lead in rice - Rapid extraction coupled with inductively coupled plasma mass spectrometry---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/LST6136-2019 Inspection of grain and oils - Determination of manganese, copper, zinc, rubidium, strontium, cadmium, lead in rice - Rapid extraction coupled with inductively coupled plasma mass spectrometry ICS 67.060 X11 People's Republic of China food industry standard Grain and oil inspection of manganese, copper, zinc, strontium, barium, cadmium, Rapid Determination of Lead - Inductively Coupled Plasma Mass spectrometry Inspectionofgrainandoils-Determinationofmanganese,copper,zinc, Rubidium, strontium, cadmium, leadinrice-Rapidextractioncoupledwith Inductivelycoupledplasmamassspectrometry Published on.2019-06-06 2019-12-06 implementation National Food and Material Reserve Bureau released ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the National Grain and Material Reserve Bureau. This standard is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270). This standard was drafted. National Academy of Food and Material Reserve Science Research Institute, National Food and Material Reserve Bureau Standard Quality Center, Steel Research Nak Testing Technology Co., Ltd., COFCO Nutrition and Health Research Institute Co., Ltd., Shaanxi Provincial Grain and Oil Product Quality Supervision and Inspection Center, Hunan Province Oil Quality Monitoring Center, Tianjin Grain and Oil Quality Testing Center, Jiangxi Zhongshang Grain, Grain and Oil Quality Supervision Center, Beijing Agricultural Products Quality Inspection and Farmland Ring Environmental Monitoring Technology Research Center, Anhui Provincial Grain and Oil Product Quality Supervision and Inspection Station, Jiaxing City Center for Disease Control and Prevention, National Food Science and Technology Wuhan Design Institute Co., Ltd., China Storage Grains and Fats (Tianjin) Co., Ltd. The main drafters of this standard. Zhou Minghui, Wang Songxue, Wang Zhengyou, Zhang Yan, Wu Yanxiang, Zhang Jieqiong, Lu Yixin, Chen Yu, Shi Chao, Wu Jing, Wang Wei, Mei Guang, Hong Ling, Liu Jia, Li Xu, Nie Huang, Cheng Ya, Lu Anxiang, Hu Bin, Mao Yongrong, Gao Weiwei, Huang Changjun, Zeng Hua. Grain and oil inspection of manganese, copper, zinc, strontium, barium, cadmium, Rapid Determination of Lead - Inductively Coupled Plasma Mass spectrometry1 ScopeThis standard specifies the principle of inductively coupled plasma mass spectrometry (ICP-MS) for manganese, copper, zinc, antimony, bismuth, cadmium and lead in rice. Reagents and materials, instruments and equipment, samples, test procedures, results handling, precision and other requirements. This standard applies to the determination of manganese, copper, zinc, antimony, bismuth, cadmium and lead in rice.2 Normative referencesThe 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 5491 Inspection of food and oil materials, sampling method GB/T 6682 Analytical laboratory water specifications and test methods3 PrincipleAfter the sample is ground to a certain particle size, the manganese, copper, zinc, lanthanum, cerium, cadmium and lead in the sample can be extracted into the extract through the dilute nitric acid. The liquid was centrifuged and determined by inductively coupled plasma mass spectrometry. The concentration of the element in the sample was proportional to the intensity of the mass spectrometry signal. Qualitative The signal intensity of the spectrum quantifies the elements in the sample solution.4 reagents and materials4.1 Reagents Note. Unless otherwise stated, the reagents used in this method are of excellent grade and the water is the first grade water specified in GB/T 6682. 4.1.1 Nitric acid (HNO3). by sub-boiling distillation or using high purity reagents. 4.1.2 Argon (Ar). High purity argon ( >99.99%) or liquid argon. 4.2 Reagent preparation 4.2.1 Nitric acid solution (5 95). Take 50mL of nitric acid, slowly add 950mL of water, and mix. 4.2.2 Nitric acid solution (10 90). Take 100 mL of nitric acid, slowly add to 900 mL of water, and mix. 4.3 Standards 4.3.1 Element stock solution (1000mg/L) (Mn, Cu, Zn, Rb, Sr, Cd, Pb). using standard or single element standard Stocking liquid. 4.3.2 Internal standard solution (1000μg/L) (Ge). Use certified internal standard solution. LS/T 6136-2019 Inspection of grain and oils - Determination of manganese, copper, zinc, rubidium, strontium, cadmium, lead in rice - Rapid extraction coupled with inductively coupled plasma mass spectrometry ICS 67.060 X11 People's Republic of China food industry standard Grain and oil inspection of manganese, copper, zinc, strontium, barium, cadmium, Rapid Determination of Lead - Inductively Coupled Plasma Mass spectrometry Inspectionofgrainandoils-Determinationofmanganese,copper,zinc, Rubidium, strontium, cadmium, leadinrice-Rapidextractioncoupledwith Inductivelycoupledplasmamassspectrometry Published on.2019-06-06 2019-12-06 implementation National Food and Material Reserve Bureau releasedForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the National Grain and Material Reserve Bureau. This standard is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270). This standard was drafted. National Academy of Food and Material Reserve Science Research Institute, National Food and Material Reserve Bureau Standard Quality Center, Steel Research Nak Testing Technology Co., Ltd., COFCO Nutrition and Health Research Institute Co., Ltd., Shaanxi Provincial Grain and Oil Product Quality Supervision and Inspection Center, Hunan Province Oil Quality Monitoring Center, Tianjin Grain and Oil Quality Testing Center, Jiangxi Zhongshang Grain, Grain and Oil Quality Supervision Center, Beijing Agricultural Products Quality Inspection and Farmland Ring Environmental Monitoring Technology Research Center, Anhui Provincial Grain and Oil Product Quality Supervision and Inspection Station, Jiaxing City Center for Disease Control and Prevention, National Food Science and Technology Wuhan Design Institute Co., Ltd., China Storage Grains and Fats (Tianjin) Co., Ltd. The main drafters of this standard. Zhou Minghui, Wang Songxue, Wang Zhengyou, Zhang Yan, Wu Yanxiang, Zhang Jieqiong, Lu Yixin, Chen Yu, Shi Chao, Wu Jing, Wang Wei, Mei Guang, Hong Ling, Liu Jia, Li Xu, Nie Huang, Cheng Ya, Lu Anxiang, Hu Bin, Mao Yongrong, Gao Weiwei, Huang Changjun, Zeng Hua. Grain and oil inspection of manganese, copper, zinc, strontium, barium, cadmium, Rapid Determination of Lead - Inductively Coupled Plasma Mass spectrometry1 ScopeThis standard specifies the principle of inductively coupled plasma mass spectrometry (ICP-MS) for manganese, copper, zinc, antimony, bismuth, cadmium and lead in rice. Reagents and materials, instruments and equipment, samples, test procedures, results handling, precision and other requirements. This standard applies to the determination of manganese, copper, zinc, antimony, bismuth, cadmium and lead in rice.2 Normative referencesThe 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 5491 Inspection of food and oil materials, sampling method GB/T 6682 Analytical laboratory water specifications and test methods3 PrincipleAfter the sample is ground to a certain particle size, the manganese, copper, zinc, lanthanum, cerium, cadmium and lead in the sample can be extracted into the extract through the dilute nitric acid. The liquid was centrifuged and determined by inductively coupled plasma mass spectrometry. The concentration of the element in the sample was proportional to the intensity of the mass spectrometry signal. Qualitative The signal intensity of the spectrum quantifies the elements in the sample solution.4 reagents and materials4.1 Reagents Note. Unless otherwise stated, the reagents used in this method are of excellent grade and the water is the first grade water specified in GB/T 6682. 4.1.1 Nitric acid (HNO3). by sub-boiling distillation or using high purity reagents. 4.1.2 Argon (Ar). High purity argon ( >99.99%) or liquid argon. 4.2 Reagent preparation 4.2.1 Nitric acid solution (5 95). Take 50mL of nitric acid, slowly add 950mL of water, and mix. 4.2.2 Nitric acid solution (10 90). Take 100 mL of nitric acid, slowly add to 900 mL of water, and mix. 4.3 Standards 4.3.1 Element stock solution (1000mg/L) (Mn, Cu, Zn, Rb, Sr, Cd, Pb). using standard or single element standard Stocking liquid. 4.3.2 Internal standard solution (1000μg/L) (Ge). Use certified internal standard solution. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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