再采用顶空气相色谱法检测所得苹果多酚纯化物中正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯等有机溶剂残留均低于检测限。
There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.
多数稳定性冠心病患者的血清心肌肌钙蛋白t水平低于传统检测方法的检测低限。
In most patients with stable coronary artery disease, plasma cardiac troponin t levels are below the limit of detection for the conventional assay.
多数稳定性冠心病患者的血清心肌肌钙蛋白t水平低于传统检测方法的检测低限。
In most patients with stable coronary artery disease, plasma cardiac troponin t levels are below the limit of detection for the conventional assay.
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