Discussion
What is a flame ionisation detector blind to?
Answer: A
Substances with no carbon-hydrogen bonds to burn - water, carbon dioxide, nitrogen, the noble gases - produce essentially no ions and give no signal. Heavy hydrocarbons, halogenated compounds and aromatics all respond, some a little less per carbon. That a detector's blindness can be an advantage, letting a wet sample be injected without a solvent peak swamping the trace, is worth recognising alongside the limitation. Most errors here come from carrying a result across from a neighbouring case where it does not hold.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development