5.0${ imes}10^{-2}$ M LiClO4 지지전해질에서 2-mercapto-1-methyl-imidazole(MMI)의 분석을 펄스차이폴라로그래피로 조사하였다. MMI의 분석에서 적절한 조건은 다음과 같다; 초기전위: -0.9 volts, 펄스세기: 0.08 mV, 주사속도: 2 mV/sec. 표준검량곡선은 1.0${ imes}10^{-7}{sim}8.0{ imes}10^{-5}$ M 범위에서 좋은 직선성을 보였으며, 검출한계는 (2.2${pm}0.1){ imes}0.1^{-9}$ M이었다. 이 방법으로 첨가제의 방해없이 항갑상선 약제중의 MMI를 정량하는데 응용하였다.
The determination of 2-mercapto-1-methyl-imidazole (MMI) in 5.0${ imes}10^{-2}$ M lithium perchlorate suporting electrolyte has been investigated by the differential pulse polarography. The optimum condition of MMI analysis was as follows; -0.9 volts initial potential, 0.08 mV pulse height, 2 mV/sec scan rate, and medium mercury drop size. Standard calibration curve showed a good linearlity in the range of 1.0${ imes}10^{-7}M;to;8.0{ imes}10^{-5}$ M and the detection limit has been (2.2${pm}0.1){ imes}0.1^{-9}$ M. This method was applicated for the determination of MMI in antithyroid drug without interference of additives.
