Harbin Medical University

Qiqihar Railway Rolling Stock Co., Ltd.

Dalian Qiche Railway Rolling Stock Co., Ltd.

Xin Zhang

Yuebin Yu

Yanhui Gao

Dianjun Sun

Yanmei Yang

Qun Lou

Mengyao Su

Zaihong Zhang

Liaowei Wu

Junfeng Han

Xiaohong Ji

Yongji Zhao

Chenlu Fan

Haipeng Liu

A method for detecting concentration of iodine in water samples. An arsenite-containing test solution, a tetravalent cerium ion-containing test solution and a series of iodine-containing standard solutions are prepared. The standard solutions are added to primary wells of a microplate, respectively. A water sample is added to a secondary well. The arsenite-containing test solution and the tetravalent cerium ion-containing test solution are sequentially added to the primary wells and the secondary well. Reaction mixture in each well is reacted and then measured for absorbance by a detector. A standard curve is plotted according to the absorbance of each primary well and a concentration of each iodine-containing standard solution. The absorbance of the sample is plugged into the standard curve to obtain an iodine concentration in the sample.

Method for detecting iodine concentration in water samples

The present invention provides a side wall of railway wagon and a boxcar of railway wagon. The side wall of the railway wagon comprises an upper side plate, a lower side plate, an inner side stake and an outer side stake, wherein the said inner side stake is arranged at the inner side of the said upper side plate and the said lower side plate, and the said outer side stake is arranged at the upper part of the said side wall of railway wagon and is arranged at the outer side of the said upper side plate. By applying the side wall in the form of internal stakes, the side wall of railway wagon and the boxcar of railway wagon of the present invention can make full use of the width space between the outer surface of the side plate and the outer surface of the side stake on the basis that the external dimension of the railway wagon is not changed, thereby effectively improving the volume of the railway wagon and the transporting capability of the train.

Side wall and boxcar of railway wagon

Growing community of inventors

Heilongjiang, China

Xin Zhang