The relevant experiment of microwave drying of wheat grain was done to analyze the drying characteristics of wheat grain and the effect of it on the quality of dried wheat grain and energy consumption and optimized its drying technology with microwave drying device and relevant process by different drying power per gram and heating time.

In view of existing problems in the hot air drying of wheat grain,experimental study on characteristics of microwave drying of wheat grain and the influence of microwave drying conditions on the quality of wheat grain and energy consumption were conducted using home-made microwave drying and testing device by choosing diffrent power of microwave,thickness of materials and airflow rate.

In order to study heavy metal pollution of the soils and wheat grains alongside the Shanghai-Nanjing Expressway,a survey was carried out with soil samples and wheat samples collected from different sections of the expressway.

An HPLC method using an external standard was developed for quantitative determination of the pirimicarb residues in wheat seed.

Distribution of Pb in different part of wheat grains and the relationship with other eight elements;

Dynamic of heavy metals in wheat grains collected from the Liangfeng Irrigated Area, Beijing and a discussion of availability and human health risks;