Sử dụng chất cải biến hóa học và kỹ thuật tiêm mẫu nhiều lần trong quang phổ hấp thụ nguyên tử lò graphit xác định một số nguyên tố kim loại trong nước biển

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Tác giả: Minh Lý Bùi, Đình Thuất Nguyễn, Thị Cẩm Bình Nguyễn, Mai Như Hiếu Võ

Ngôn ngữ: vie

Ký hiệu phân loại: 552.8 Microscopic petrology

Thông tin xuất bản: Hội nghị Khoa học và Công nghệ biển toàn quốc: Quyển 5 - Sinh thái, môi trường và quản lý biển, 2011

Mô tả vật lý: 113-119

Bộ sưu tập: Metadata

ID: 504653

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Having established the optimum parameters for the atoms of multi-injection technique combine use of chemically modified and corred system for determining direct metal content as Cd and Hg in sea water samples by atomic absorption spectroscopy graphite furnace (ETAAS). The effects of noise background to the inorganic salts in seawater is very important to have significantly reduced when using a mixture of chemical modified with ratio Pd(N03h:ascorbic acid = 20:200 (mg/l) along with two control systems background: deuterium arc background correction (DABC) and Zeeman effect background correction (ZEBC). Besides techniques to enrich by reconcentration combines program the heat for the metals such as Cd and Hg corresponds to a charring temperature of 500°C and 300°C
atomisation temperature of 1500°C and 1400°C were determined concentrations of trace metals in the sea water.

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