【摘要】 FT₃^M、FT₄^M磁性固抗放射免疫分析法是采用特定的磁性固相抗体,集提取和分离为一体的一种灵敏而快速的直接二步法（反滴定法）。液体血清标准的适宜温育条件,用于直接测定人血清游离甲状腺激素（FT₃、FT₄）浓度。更多还原

【Abstract】 Two sensitive and rapid RIA method for quantitative measurement of free triiodothyronine （FT₃） and free thyroxine （FT₄） in serum are described. These two step RIA procedures utilize immunoextraction of free hormone and separation of free phase by specific, high affinity polyclonal antiserum coupled to cellulose coated magnetic iron oxide particles. The measurement range is 0—100 pmol/l for FT₄ and 0—50 pmol/l for FT₃ respectively. Sensitivity of FT₃ and FT₄ is no more than 0.5 pmol/l. The normal range is 2.5—9.5 pmol/l for FT₃ and 9.5—25.5 pmol/l for FT₄.更多还原