CAJ | 학술논문

根据2,4-二硝基苯肼与醛类化合物发生显色反应的特征，选择最佳反应条件，采用偏最小二乘法结合光度法对吸收光谱重叠的甲醛、乙醛、苯甲醛的模拟样品进行同时分析，对测定条件进行优化，并用此法对啤酒样品的醛类进行同时测定。对模拟样品，回收率分别为100.4%、96.7%和93.6%。本法测量体系稳定,仪器简单，成本低,结果可靠。
근거2,4-이초기분정여철류화합물발생현색반응적특정，선택최가반응조건，채용편최소이승법결합광도법대흡수광보중첩적갑철、을철、분갑철적모의양품진행동시분석，대측정조건진행우화，병용차법대비주양품적철류진행동시측정。대모의양품，회수솔분별위100.4%、96.7%화93.6%。본법측량체계은정,의기간단，성본저,결과가고。
The optimum reaction conditions was selected according to characteristics of the color reaction of 2, 4-dinitrobenzene hydrazine with aldehyde compounds. Combining partial least squares (PLS) with spectrophotometry, simulative samples of overlapping spectrum formaldehyde, acetaldehyde, benzene formaldehyde were analyzed simultaneously and the measuring conditions were optimized. This method was also used for simultaneous determination of aldehyde compounds of beer samples. The recoveries of simulative samples were 100.4%, 96.7% and 93.6%, respectively. This method was meaningful for the stable measurement system, simple instrument, low cost and reliable results.