تهیه الکترود یون‌گزین بر پایه پلی وینیل کلرید برای اندازه‌گیری دی‌متیل آمینو اتیل‌کلراید ‌هیدروکلراید

Dimethyl amino ethyl chloride hydrochloride (DMC) is a primary material of fuel of dimethyl amino ethyl azide (DMAZ) that is a good alternative for hydrazine derivatives in the aerospace industry. Some amount of unreacted DMC remains in the wastewater in production processes of DMAZ (95% wt.) that due to toxicity and corrosion effect of DMC, determination of this compound in DMAZ waste is inevitable. In this research, an ion selective electrode was manufactured based on dithranol ionophore. Parameters such as membrane composition, pH effect, response time and selectivity of the electrode were optimized and investigated. Calibration curve on optimized conditions showed that the made electrode for DMC cation measuring, within pH= 4.4- 4.8 range, had responded with Nernst slope of 57.2±0.34 for concentration range of 5.1×10−5–2.6×10−2 M at 25 ºC. Detection limit and selectivity (RSD% for concentration of 10 -3 M DMC with 6 replicate runs) of the electrode were obtained as 5.8 10 -8 and 0.61 percent respectively. Finally after applying of this electrode for DMC measurements in wastewater of DMAZ production, ion chromatography method was used for the result validation.