Friday, February 25, 2011

Titrations!

Vocab
Titration- laboratory method of chemical analysis to determine unknown concentration of a reagant; uses a volumetric buret and erlenmeyer flask
Ascorbic Acid- sugar acid with antioxidant properties; comonly found in vitamin C
AOAC- scientific association that esablishes uniform chemical analysis to limit variability

Wednesday 2/23

Today we began our analysis of Vitamin C. Before we could analyze our sample, however we had to practice the AOAC method and create a couple standard blanks. The best method to analyze ascorbic acid is by performing a titration. I was really nervous. I've had to perform titrations in AP Chem and failed miserably so I didn't want to mess up again when it really mattered. Luckily, Dr, Engeseth showed me her technique and it was much easier. All the professors and grad students in the lab have different tricks and techniques for performing experiments. It's up to each individual to decide how they want to perform it themselves.

No comments:

Post a Comment