1) First, select "title" in the search term, and the search term is "ferric sulfate", and get the search results according to the search; Then search for "journal name" in the search results, the search term is "Journal of Sichuan Normal University", and finally retrieve the paper "Preparation of Polymeric Ferric Sulfate"

2) Title information

Author: Xiang Qun

Author: Sichuan Institute of Light Chemical Technology

Key words: polymeric ferric sulfate; Acidity; catalyst

The preparation principle and method of polymeric ferric sulfate are introduced, and the selection of catalyst in the preparation method is discussed.

3) First reference:

, Mo, Nie, Gong Guoqing, Lu Yanling. Study on the new technology of producing polymeric ferric sulfate [J]. Industrial water treatment, 1994, (0 1)

the second question

It can be searched in the full-text database of excellent master's dissertations in China.

You can download the full text

Author: Xie Kai

Tutor: Zhao Jian.

Keywords: S3C2410; ; Embedded system; Modular instrument

Third question

Log on to SpringLink Electronic Journal Network, select business and economics in the subject classification, and then enter the search term "ti: (Economy and Trade)" in the search to get relevant search results.