When using procedure C, a spiked solution will compensate for the differences in recovery.

回答：在使用方法C时，加标溶液可弥补回收率差异。

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When using procedure c, a spiked solution will compensate for the differences in recovery.

在使用方法C时，加样溶液会对回收差异进行补偿。

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The solutions may be prepared either using eithera standard solution or spiked solution or by the method of standard addition.

可以使用标准溶液或加标溶液，或者通过标准加入法制备的溶液。

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