Xây dựng quy trình phân tích xácđịnh xyanua tự do trong nước bằng cách sử dụng đưa mẫu tự động qua hệ thống mao mạch điện kết hợp với đầu dò không tiếp xúc

• Ngôn ngữ: vie
• Ký hiệu phân loại: 544.92 Qualitative analysis
• Thông tin xuất bản: Hóa học, 2014
• Mô tả vật lý: 794-798
• Bộ sưu tập: Metadata
• ID: 503874

Tóm tắt

Background electrolyte conditions and setting condition of auto capillary electrophoresis system were studied to develop an analysis procedure for free cyanide determination in environmental water samples. CAPS buffer with added CTAB at pH 11 was selected as the mobile phase. The sample injection amount is adjusted by changing needle valve position and sample injection time. Separation process is performed at +20 kV. Developed procedure allows the quantification of cyanide with high accuracy, short analysis time, less chemicals consumption and more importantly avoiding the dangerous and complex sample handling process. The detection and quantification limit of this method are respectively 0.9 and 2.9 mg/L.