更多reagent例句

1. Emergency room staff in at least one Alta hospital lacked chemical reagents needed to perform critical enzyme tests on heart attack patients, according to another former Alta executive who sued the company.
2. Officials are scrambling to fill gaps at nearly every level of the supply chain, from the swabs and chemical reagents used to conduct tests to the machines that process them and the people who run those machines.
3. Barium nitrate, added to a solution acidified with nitric acid, is the group reagent.
4. Silver nitrate, added to a solution acidified with nitric acid, is the group reagent.
5. Barium nitrate, used with a neutral solution, is the group reagent in the absence of metal ions other than the alkali metal ions.
6. Do this by boiling some of the sample in water, and when cool adding a drop or two of iodin reagent.
7. When a precipitate forms with the above reagent, it should settle immediately and leave a clear and almost colorless liquid.