Table of Contents
Advertisement
Ozone,
continued
Sampling and Storage
The main consideration when collecting a sample is preventing the escape of ozone
from the sample. The sample should be collected gently and analyzed immediately.
Warming the sample or disturbing the sample by stirring or shaking will result in ozone
loss. After collecting the sample, do not transfer it from one container to another unless
absolutely necessary.
Stability of Indigo Reagent
Indigo is light-sensitive. Therefore, the AccuVac Ampuls should be kept in the dark at
all times. However, the indigo solution decomposes slowly under room light after filling
with sample. The blank ampule can be used for multiple measurements during the
same day.
Accuracy Check
Standard solutions for ozone are difficult and time-consuming to prepare. Errors can
occur if proper attention to details is not taken while preparing the standards. The
manufacturer prepares the calibration curve under rigorous analytical laboratory
conditions and recommends using the factory calibration.
1—58
Advertisement
Table of Contents
