This paper proposed a safe transmission scheme for the secret information based on IDA algorithm,expounds theoretically in detail this scheme,gives the test results,and analyzes on the advantages and disadvantages of these results.

Research and development of the analytical methods of ozone;

Recent development of sulfur content analytical methods used in gasoline;

Influences of iron contents on sodium dichloroisocyanurate whiteness and its analytical method;

Progress in analytical methods of vitamins;

Advances in studies on analytical methods used for Fusarium toxins;

Recent progress in the development of analytical methods for insulin-like growth factor-I;