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Residual methanol in oxytetracycline hydrochloride was determined by head space GC. The average recovery was 99.8 %.

采用顶空气相色谱法测定盐酸土霉素中的残留甲醇, 平均回收率为99.8%.

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Residual methanol oxytetracycline hydrochloride was determined by head space GC. The average recovery was 99.8 %.

采用顶空气相色谱法测定盐酸土霉素中的残留甲醇,平均回收率为99. 8%.

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Injections of vapour phase may be effected by static or dynamic head - space injection systems.

气相进样可能会受静态或动态顶空进样系统的影响.

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In the cylinder this expansion space is provided by the vapor space or the head space.

在钢瓶内,这个膨胀空间由蒸气空间或顶部空间提供.

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