NGHIÊN CỨU XÁC ĐỊNH HÀM LƯỢNG VẾT KIM LOẠI Se, Cu, Zn, Mg, Mn TRONG MÁU CỦA MỘT SỐ BỆNH NHÂN MẮC BỆNH VỀ HÔ HẤP BẰNG PHƯƠNG PHÁP PHỔ KHỐI LƯỢNG PLASMA CAO TẦN CẢM ỨNG (ICP – MS)

Tóm tắt

Concentration of selenium (Se), copper (Cu), zinc (Zn), magnesium (Mg), manganese (Mn) in blood of
patients with respiratory disease were determined by method of inductively Coupled Plasma - Mass
Spectrometry (ICP-MS) after sample digestionin a close container in a microwareoven. The result of Se, Cu,
Zn, Mg and Mn (ppm) are in the range of 0.0122 – 2.0865, 0.2329 – 1.5815, 1.9094 – 13.0964, 4.3917 –
19.1262 and 0.0430 – 0.5703. The detection limits are 0.3870 (ppt) for Se and 0.003; 0.045; 0.0042; 0.0045
(ppt) for Cu, Zn, Mg, Mn respectively. The relative standard deviation (%RSD) of 10 replicated
measurement is less than 6%. The recovery range of element is 50,83% to 108,35%. The accuracy of the
result shown in the repeatability and recovery performance is ensured according to AOAC.