The conditions of headspace has been tested and optimized, and the method for determination of formaldehyde in water by automatic static-headspace capillary gas chromatography is built.
对顶空条件和色谱条件进行了研究和优化，建立了污水中甲醛的自动静态顶空-毛细管气相色谱的检测方法。
In order to determine the efficiency of formaldehyde removal and simplify the experimental equipment, the adsorption capacities were compared between gas phase method and liquid phase method.
为了进一步证明二氧化锰对甲醛的去除效果，简化实验装置等，比较了气相法和液相法的吸附结果，研究了甲醛溶液浓度和吸附剂粒度对甲醛吸附量的影响。
A capillary gas chromatographic method with directly sampling was established to determine the residual amount of formaldehyde in hydrochlorothiazide.
建立了采用直接进样毛细管气相色谱法测定氢氯噻嗪中甲醛残留量的方法。
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