Its titre was 10~ ( - 6 ) determined with double antibody sandwich method.

双抗体夹心法测定其滴度高达1∶10~6.

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Methods: Using double antibody radioimmunoassay ( RIA ) method to determine serum PTH M in 271 CRF patients.

方法: 利用双抗放射免疫测定法对271例CRF患者作血PTH?M含量测定.

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Serum NSE was measured by solid phase ethanol immunoadsorption and serum IL - 6, by double antibody ELISA.

以固相醇联免疫吸附法(SPEIA)测定血清NSE水平,以双抗体夹心ELISA法测定血清IL - 6水平.

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