找出语法错误并翻译

To establish methods for the determination of fumaric acid、nicotinic acid、polysaccharides and protein in Pleurotm citrinopileatus Sing which can evaluate and control the quality of it.

你这不是一个英语句子，仅仅是一个不定式短语。意思都对，就是把to去掉就是个正确的句子了。