http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김택겸(Taek-Kyum Kim),김장억(Jang-Eok Kim) 한국농약과학회 2000 농약과학회지 Vol.4 No.3
This study was conducted to elucidate extraction efficiency by microwave in comparison with SoxhIet for extraction of pesticide residues in dried medical herbs; red-ginseng, white-ginseng, Bupleuri Radix, Angelica gigas Nakai, Rehmannia glutinosa. The acetone extraction by microwave of tolclofos-methyl and quintozene in medical herbs was efficient. The extraction efficiency by microwave with power 45 to 150 watts, extraction time 1 to 5 minutes and solvent volume 30 ㎖ was compared with that of SoxhIet with extraction time 7 hours and solvent volume 150 ㎖. The extraction efficiency by microwave with extraction time 3 to 5 minutes was similar with extraction time of 7 hours by SoxhIet. When medical herbs spiked with tolclofos-methyl and quintozene was analyzed to know the extraction efficiency of microwave by kind of medical herbs, the extraction efficiency by microwave with extraction time of 3 to 5 minutes was the same as SoxhIet extraction. The optimal condition for extraction of tolclofos-methyl and quintozene in medical herbs by microwave was 45 to 90 watts of power supply, 3 to 5 minutes of extraction time and acetone 30 ㎖ of solvent volume.