CAJ | 학술논문

采用离子色谱法同时测定污泥与餐厨垃圾联合厌氧发酵液中乳酸、乙酸、丙酸、正丁酸、异丁酸、正戊酸、异戊酸等7种有机酸，通过试验优化洗脱程序，使得7种有机酸在2．00 mg/L～60．0 mg/L 范围内线性良好。试验表明，方法检出限为0．250 mg/L～0．580 mg/L，标准样品的加标回收率为93．0％～108％，8次测定结果的RSD为3．7％～7．1％，实际样品测定的加标回收率为90．6％～109％。
채용리자색보법동시측정오니여찬주랄급연합염양발효액중유산、을산、병산、정정산、이정산、정무산、이무산등7충유궤산，통과시험우화세탈정서，사득7충유궤산재2．00 mg/L～60．0 mg/L 범위내선성량호。시험표명，방법검출한위0．250 mg/L～0．580 mg/L，표준양품적가표회수솔위93．0％～108％，8차측정결과적RSD위3．7％～7．1％，실제양품측정적가표회수솔위90．6％～109％。
Ion chromatography was applied to the simultaneous determination of seven organic acids in fer-mentation broth of anerobic fermentation using combined sludge and food waste,including lactic acid,acetic acid,propanoic acid,n-butanoic acid,iso-butanoic acid,n-pentanoic acid and iso-pentanoic acid.An optimal elution program was established through experiment.Linear relationships of the seven kinds of organic aicds were good in the range of 2.00 mg/L~60.0 mg/L.The experiment showed that the detection limits were in the range of 0.250 mg/L~0.580 mg/L,and the relative standard derivations of the eight determination results were 3. 7%~7 .1%,and the recoveries of standard organic acids and fermentation broth samples were in the ranges of 93.0%~108% and 90.6%~109%,respectively.