由于这种作用的影响，使钾质煌斑岩的源区地幔处于地温梯度高、氧逸度高的不稳定状态。

Under the influence of the subduction, the source mantle of the potassic lamprophyres has a high geothermal gradient and oxygen fugacity.

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等度洗脱建立了氯沙坦钾原料药的高效液相色谱（ HPLC）含量测定方法，方法准确可靠， 梯度洗脱建立了氯沙坦钾原料中有关物质的HPLC检查方法。

A method was established for determination of losartan potassium and related substances by HPLC. The proposed method was simple, selective, accurate and reproducible.

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