has interned at this company for twenty days from 12th to 31st, July 2010. During this period, she has adroitly mastered various experiments such as determination of volatile phenol, fast determining COD and DO by spectrophotometer and nearly all the experiments concerning about determination of main indexes of water samples. She has also gained proficiency in the usage method of some complicated equipment like gas chromatograph and flame ionization detector(FID).I highly appreciate her effort and diligence as she would like to participate in the job of collecting water simples which is really a hard work that we only assign males to cover the part. To speak of, it is very hot in summer, especially in late July and samplers would spend more than seven hours working outside. In sum, Ms. XXX has acted as an aggressive and outstanding member, and has kept learning professional skills and theories. She has finished this internship, proved to be a self-disciplined and competent team-worker.