甲醛次硫酸氢钠

高效液相色谱法测定小麦粉与大米粉中甲醛次硫酸氢钠含量的不确定度评定

Uncertainty Evaluation of High Performance Liquid Chromatographic Determination of Sodium Formaldehyde Sulfoxylate ( Rongalite ) in Wheat Powder and Rice Powder

食品中甲醛次硫酸氢钠（吊白块）测定结果的分析

Analysis the determine result of the sodium formaldehyde sulfoxylate in food

目的探讨吊白块（甲醛次硫酸氢钠）中甲醛的测定方法。

Objective To study the methods for determination of formaldehyde in rongalite .

农产品和食品中甲醛次硫酸氢钠（吊白块）现场快速定量测定的研究

Research on the in Situ Quantitative Determination of Formaldehyde Sodium Sulfoxylate in Farm Produce and Foodstuff

甲醛次硫酸氢钠检出（超标）率，馒头最低（0.0%），粉丝最高（22.9%）。

The detection rate of methanal sodium bisulfite was the lowest in steamed bun ( 0.0 % ) and the highest in vermicelli ( 22.9 % ) .

该方法适用于腐竹等食品中甲醛次硫酸氢钠的测定，灵敏度高，结果准确，简便易行。

The method , which is used to determine sodium formaldehyde sulfoxylate in yuba etc. , is sensitive , accurate , quick and suitable for routine food analysis .

对于龙口粉丝出现甲醛次硫酸氢钠事件，南京市工商局市场处的相关人士提醒市民在购买龙口粉丝的时候一定要看清生产厂家。

For the fans there Longkou formaldehyde sodium bisulfate , Nanjing Industry and the relevant market Longkou fans who buy the time to remind the public to see manufacturers .

[结果]抽查面粉及其制品226份，过氧化苯甲酰检出率为16.8%、超标率为15.5%，甲醛次硫酸氢钠检出（超标）率为4.9%。

[ Results ] 226 samples were tested . The detection rate of benzoyl peroxide was 16.8 % and supernormal rate was 15.5 % . The detection rate of methanal sodium bisulfite was 4.9 % .

[结论]曲阜市市场上销售的本地、外埠面粉及其制品相当一部分超量使用过氧化苯甲酰和违规使用甲醛次硫酸氢钠。

[ Conclusion ] The usage amount of benzoyl peroxide went beyond the limits allowed and methanal sodium bisulfite was also used illogically , which was found in quite a lot of flour and its products sold in Qufu market from native and external districts .

利用单体化合物稳定同位素（CSIA）技术研究了甲醛合次硫酸氢钠（HMSNa）与半胱胺衍生化过程的同位素效应，探讨了半胱胺衍生化法测定大气甲醛碳同位素的可行性。

The isotope effects of HOCH_2SO_3Na ( HMSNa ) derivatization and cysteamine were preliminary studied by compound-specific isotope analysis ( CSIA ) . The feasibility for the determination of isotopic composition of atmospheric formaldehyde was discussed .

液相色谱-电化学法检测食品中甲醛合次硫酸氢钠

Inspection of Sodium Formaldehyde Sulfoxylate in Food by Liquid Chromatography with Electrochemical Detection

方法在不断通入空气的情况下，采用碘量法测定甲醛合次硫酸氢钠在水溶液中不同时刻的浓度，作出降解曲线，并计算反应速率常数。

METHODS Residual concentrations of sodium formaldehyde sulfoxylate in the solutions determined by iodimetry were dealt with linear regressions to obtain the constants of reacting rate .

本文用2002年国家质检总局推荐的方法对我国不同地区种植的122份小麦自磨粉的甲醛本底值进行了测定，进而为测定小麦粉中甲醛次硫酸氢钠含量提供科学依据。

In this paper , the background values of 122 wheat flour samples were determined with the method recommended by General Administration of Quality Supervision , Inspection and Quarantine in 2002.It was expected that the values can provide scientific principles for inspecting sodium formaldehyde sulfoxylate content in wheat flour .