草酸钾添加量对卷烟纸热解性能及主流烟气的影响

The Detection and Clinical Significance of Plasma D-dimer, vWF, Fibrinogen in Patients with Malignant Hematological Diseases

通过在卷烟纸上添加不同量的草酸钾,采用常规烟气分析、同步热分析,研究其对卷烟纸热解性能及主流烟气的影响.结果表明：在卷烟纸上添加草酸钾后对卷烟主流烟气中的焦油和CO有一定的降低作用,随着添加量的继续增加,抽吸口数、CO和焦油释放量均呈先下降后缓慢上升趋势;在草酸钾添加量为1.5%时,其降焦及降CO效率最高;随着草酸钾添加量的增加,卷烟纸热解起始温度降低,在200～300℃时反应活化能降低.

Objective To study the expression of the plasma d-dimer（D-D）, von Willebrand factor （vWF）, fibrinogen（Fbg） in the patients with malignant hematolog!cal diseases, and analyze the relationship between these three markers and the diseases. Methods The level of D-D, vWF and Fbg were tested in the 124 patients with malignant hematological diseases,which included the diseases such as acute leukemia, my- eloproliferative neoplasms and malignant lymphoma. And the association of clinical features of the patients with the markers was analyzed. Results The level of D-D and vWF was much higher in the malignant hematologi- cal disesses than the controls. Although the fibrinogen was higher in the patients than the contrals, it was not statistically significant （ P 〉 0. 001 ）. The expressions of these markers of the different groups showed no difference. Conclusion Not only It is useful for D-D,vWF and Fbg to evaluate the state of procoagulation and fibrolysis in the patients with malignant hematological diseases,but also it is helpful to predict the prognosis.