The acid proper-ties of its coking in front and behind by temperature programmed desorption of ammonia(TPD).

用氨程序升温脱附法（TPD）研究了它们在积炭前后的酸性变化。

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Synthesized saponites and Al-pillared saponites have been characterized by XRD, chemical analysis, IR, MASNMR and TPD.

用XRD、化学分析、IR、MASNMR、TPD等手段表征了合成皂石及其铝交联物的结构。

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Studies of the surface acidity of zeolites have been made under conditions close to the reaction conditions by TPD technique.

用程序升温脱附技术，在接近反应条件下研究沸石的表面酸性。

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The bottom line is that the current TPD draft, if approved by the nations of the EU, will allow the continued sale of pharmaceutical products sold as aids to smoking cessation, which have been shown over and over again to be largely ineffective.

FORBES: The EU's New Tobacco Directive: Protecting Cigarette Markets, Killing Smokers

Enlightened public health experts in the region, and elsewhere, had hoped that the new TPD would ease these restrictions, given the clear evidence of its efficacy in reducing the harm of tobacco, while the approved products for helping smokers quit fail over 90 percent of the time.

FORBES: The EU's New Tobacco Directive: Protecting Cigarette Markets, Killing Smokers