I found the following sentence in my chemistry book:
"These increasingly important methods are used to analyze for trace pollutants in natural waters or for the tiny quantities of chemicals in human blood that may signal the development of a specific disease."
However, as I looked the word up in every dictionary, I found that 'analyze' is a transitive verb. Therefore, I think that the use of 'analyze' in the sentence above is incorrect.
What do you think about it?
Thanks for any help.
PS: Please show me every mistake I've made. Thanks again.