Flame atomic absorption spectrometry with standard addition method was used to determine the iron.

目的:建立用琼脂悬浮液进样,标准加入火焰原子吸收法测定奶粉中铁的方法.

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Air - drying - DCPD - type unsaturated polyester resin prepared by using modifiedhydrolysis addition method was proposed in the paper.

本文用水解加成法合成了气干性双环戊二烯型不饱和聚酯树脂.

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In addition , method for roll groove design of the mill is put forward.

提出了斜轧扩管机轧辊辊型设计方法.

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