The laboratory technician carefully labeled each reagent before placing it in the cold storage.

The lab carefully stored the reagents to prevent contamination during the experiment.

The lab technician added a few drops of Molisch's reagent to the solution to test for the presence of carbohydrates.

When preparing a Grignard reagent, strictly anhydrous conditions must be maintained to prevent rapid decomposition.

To test for glucose in the urine, the lab technician added Benedict's reagent and heated the sample until a color change occurred.

When treating industrial wastewater, engineers often add Fenton's reagent to accelerate the breakdown of persistent organic pollutants.

Sanger's reagent was added to the peptide sample to derivatize the N-terminal residue for sequencing.

During the lab exercise, the mycology students used Melzer's reagent to test for amyloid reactions in the mushroom spores.

The technician carefully prepared the Liebermann reagent, a mixture of potassium nitrite and concentrated sulfuric acid used to test for cocaine, morphine, PMA and PMMA, before beginning the analysis.

In the lab, Ehrlich's reagent turned the sample purple, indicating the presence of indoles.