该方法使用仪器简单、操作方便、选择性和准确度好，适合水发食品中甲醛含量的测定。
The method is characterized by simple instrument, easy operation, good selectivity and good accuracy, which is suitable for determination of formaldehyde in soaked food.
采用电位滴定法改进了测定甲醛含量的中性亚硫酸钠法，并对其准确度和影响因素进行了探讨。
In this paper a potentiometric titration was used to improve the neutral sodium sulfite method for determining the content of formaldehyde, and the accuracy and influential factors were discussed.
采用酚试剂比色法并合理使用甲醛测量装置对甲醛含量进行了测定，测量结果的精度能够达到装置标称的5%。
We use of colorimetric phenol reagent and formaldehyde measurement devices for measuring formaldehyde, the accuracy of the measurement results can reach nominal 5% of the device.
甲醛含量作为纺织产品检验工作中的一项强制性考核项目，了解和掌握影响其测定的相关因素是十分必要的。
The content of formaldehyde is a compulsory examination item in textile inspection, so it is very necessary to understand related factors that affect the determination of formaldehyde content.
结论戊二醛含量测定值可受到亚硝酸钠、碳酸氢钠的负干扰和甲醛的正干扰作用。
Conclusion Glutaraldehyde content determined value is affected by the negative interference of sodium nitrite and sodium bicarbonate and the positive interference of methanal.
方法采用品红亚硫酸法和乙酰丙酮法测定吊白块中甲醛含量，并计算样品中吊白块的含量。
Methods The content of formaldehyde in rongalite was determined by sulfurous acid, magenta and acetylacetone spectrophotometry respectively.
目的采用反相高效液相色谱（RP-HPLC）法测定氯霉素滴眼液中氯霉素的含量及有关物质中二醇物和对硝基苯甲醛的含量。
Objective To develop a quantitative method for the determination of chlorampenicol and related substances, such as glycols and p-nitrobenzaldehyde, in chlorampenicol eye drops by RP-HPLC.
讨论了采用程序升温气相色谱法测定2 羟乙基吡啶合成液中甲醛、水、2 甲基吡啶和2 羟乙基吡啶含量的方法。
The determination method of formaldehyde, water, 2-methyl-pyritine, acetic acid and 2-hydroxyethyl-pyritine in the solution of synthesizing 2-hydroxyethyl-pyritine by GC was discussed.
摘要实验证明甲醛法测定铵盐含量，只要准确测定出较正因子对结果加以校正，是能够直接使用未经蒸馏去除甲醇的甲醛溶液而测定结果不存在显著差异，本方法简单、快速。
A rapid , simple method has been developed for determination of ammonium perchlorite by using formaldehyde . this experiment proved that this method saved measuring time , raised speed and efficiency.
该修饰电极可用于测定水溶液中甲醛的含量。
The modified electrode can be used to measure formaldehyde in aqueous solution.
我们还对传统的甲醛—硫酸法进行了改良，并将新的甲醛—硫酸法运用于硝酸尿素金属络合物中的酰氨态氮和总氮含量的测定中。
We also improved the conventional formol-H2SO4 titrimetric method, and applied it into the determinations of the contents of amide nitrogen and total nitrogen in urea nitrate metal complexes.
我们还对传统的甲醛—硫酸法进行了改良，并将新的甲醛—硫酸法运用于硝酸尿素金属络合物中的酰氨态氮和总氮含量的测定中。
We also improved the conventional formol-H2SO4 titrimetric method, and applied it into the determinations of the contents of amide nitrogen and total nitrogen in urea nitrate metal complexes.
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