Which of the following is not an advantage of electrochemical cells used for analysis of H2S?
A. Portable battery operated instrument
B. Pocket sized instrument
C. No pumps are needed
D. No interference from background gases
Answer:D
Which of the following is not an advantage of electrochemical cells used for analysis of H2S?
A. Portable battery operated instrument B. Pocket sized instrument C. No pumps are needed D. No interference from background gases
Explanation: Electrochemical cells are affected by interference from background gases. Some of them are sulphur dioxide, carbon monoxide, nitric oxide and chlorine.