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BÀI GIẢNG HÓA PHÂN TÍCH TS. GVC. HOÀNG THỊ HUỆ AN

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5.2. LỌC : tách các hạt pha rắn khỏi pha lỏng bằng màng<br />

lọc thích hợp nhờ sự chênh lệch áp suất giữa 2 bên<br />

màng.<br />

VẬT LIỆU LỌC<br />

Lọc dày<br />

Lọc màng<br />

ĐẶC TÍNH<br />

bằng giấy / sợi thủy tinh/ amiant<br />

bằng cellulose / acetat cellulose / nitrat<br />

cellulose / teflon<br />

- màng vi lọc : d pore = 0,1 – 8 µm<br />

- màng siêu lọc : d pore = 5 – 35 nm

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