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GB/T 32114-2015: Determination of sodium phytate in oral care products
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GB/T 32114-2015: Determination of sodium phytate in oral care products

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(Determination of phytate oral care products) ICS 71.100.70 Y43 National Standards of People's Republic of China Determination of phytate oral care products Issued on. 2015-10-13 2016-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China National Light Industry Council. The standard oral care products by the National Technical Committee of Standardization Technical Committee toothpaste (SAC/TC492/SC1) centralized. This standard was drafted. National Light Industry Products Quality Supervision and Inspection toothpaste Wax Center, Yunnan Baiyao Group Co., Ltd., Beijing Haidian District, product quality supervision, inspection, Hangzhou quality technical supervision detection hospital. The main drafters of this standard. Zheng and Wei, Gao Ying, Lixian Bo, Sun East, Meng Yu, Shen Rui calyx, still dimension An Xiaoguang. Determination of phytate oral care products

1 Scope

This standard specifies the method of oral care products points phytate determination, reagent and standard materials, instruments, analysis step, the results of the count Operators, recovery, standard deviation. This standard applies to phytate (sodium phytate), the test results in terms of phytate. This standard phytate detection limit of 2.5mg/L, the limit of quantification of 5mg/L.

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 Method 3 points Adopted by suppressed ion chromatography Oral Care Products in phytate content. Samples using secondary deionized water and Disodium EDTA solution, after centrifugation, the supernatant after settling C18 pretreatment column and 0.45μm microporous membrane filtration chromatography ion implantation instrument. With 0.22mol/L sodium hydroxide solution, water and the volume fraction of 50% aqueous solution of isopropanol gradient elution suppressed by micro-membrane After the detection of conductivity.

4 Reagents and Standards

4.1 General provisions Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and water GB/T 6682 provided a water. 4.2 Sodium hydroxide Chromatography. 4.3 isopropanol Chromatography. 4.4 Disodium ethylenediaminetetraacetate (EDTA) solution of disodium 0.01mol/L. 4.5 phytate standards Formula C6H6O24P6Na12, molecular weight 923.81, CAS Registry Number 14306-25-3, phytate content of ≥70%. 4.6 phytate stock standard solution Weigh phytate standard (4.5) 0.1426g (accurate to 0.0001g) dissolved in water and dilute to 100mL, wherein the concentration of phytate ...