|
| 超声波萃取-红外分光光度法测定土壤中石油类 |
| Determination the Petroleum Oils in Soil by Ultrasonic Extraction with Infrared Spectrophotometric Method |
| |
| DOI： |
| 中文关键词: 石油类 超声波萃取 红外分光光度法 土壤 |
| 英文关键词: Petroleum oils Ultrasonic extraction Infrared spectrophotometric method Soils |
| 基金项目: |
|
| 摘要点击次数: 2521 |
| 全文下载次数: 1180 |
| 中文摘要: |
| 采用超声波萃取-红外分光光度法测定土壤中石油类，并对超声波机的功率、水浴温度和萃取时间进行优化。试验表明：方法在0 mg/L～80.0 mg/L范围内线性良好，相关系数r为0.9997；方法检出限为6.00 μg/L，当取土壤样品10.0g时，方法检出限为0.03 mg/kg；空白土壤的加标回收率为97.4%~103%；测定实际土壤样品的RSD为3.0%~3.9%。通过比较超声波萃取、四氯化碳热浸法和快速溶剂萃取法的前处理效果，显示出超声波萃取法的优越性。 |
| 英文摘要: |
| A method was established to determine petroleum oils in soil by ultrasonic extraction infrared spectrophotometry. Such conditions were optimized as the ultrasonic power, the water bath temperature and the extraction time. The results showed good linearity in the range of 0 mg/L～80.0 mg/L,with the correlation coefficient 0.999 7；The method detection limit come to be 0.03 mg/kg when the sample number was 10.0 g. The spiked recoveries of blank soil were 97.4%～103%； The RSDs of determination of the actual soil samples ranged from 3.0% to 3.9%. Compared to hot dipping method and accelerate solvent extraction, the ultrasonic extraction showed its superiority. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
