如果在供试品的制备过程中使用了表面活性剂，必须证明其不会对微生物产生毒性并且可与 灭活剂兼容。
If surface-active substances are used for sample preparation, their absence of toxicity for micro-organisms and their compatibility with inactivators used must be demonstrated.
糠醛脱羰催化剂失活的主要原因是大量积碳附着于催化剂表面使活性中心被包埋从而使催化剂失去活性。
The deactivation of the catalyst of furfural decarbonylation is mainly due to carbon deposition attached to the catalyst surface, it leads to the active site embedded, so the catalyst losed activity.
此外，本文结合催化剂的组成、结构和表面形貌的表征对催化剂的催化活性和失活行为进行了讨论。
In addition, on the basis of the information obtained by the characterization of catalyst composition, structure and morphology, activity and deactivation behavior of the catalyst were discussed.
结果表明，催化剂失活的主要原因是糠醛加氢过程中生成的高聚物附着在催化剂的活性表面。
The results showed that adhesion of higher polymers formed during the hydrogenation process onto surface of the catalyst was the main cause for deactivation of the catalyst.
本工作考察了分子筛裂化催化剂水蒸汽减活与表面酸度、表面积，和相对结晶度的关系。
The relation between steam deactivation and surface properties of zeolite - containing cracking catalyst was investigated.
应用XRD、SEM与BET测比表面等手段对蜂窝形多孔陶瓷钯催化剂及其失活状态进行了测试。
The palladium catalysts supported by honeycomb porcelain and its deactivation state have been studied by means of XRD, SEM and BET surface area measurement.
本发明方法不经过关环过程，创新性地采用真空―两性化法直接合成酰胺型表面活 性剂。
The synthetic method is novel in the direct synthesis of amide surfactants by vacuum-amphoteric method without ring closing reactions.
本发明方法不经过关环过程，创新性地采用真空―两性化法直接合成酰胺型表面活 性剂。
The synthetic method is novel in the direct synthesis of amide surfactants by vacuum-amphoteric method without ring closing reactions.
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