Discussion
A calibration is linear to 0.8 absorbance and then bends. What is the first thing to check?
Answer: B
Curvature appearing only at high absorbance is the classic signature of stray light, which sets a ceiling on the measurable absorbance, though molecular interaction at high concentration produces the same shape. Wavelength drift, cell mismatch and a wrong blank would affect the whole line rather than only its upper end. Where on a calibration a departure appears is what identifies its cause, and the top end points at these two mechanisms alone. Checking the units of each quantity catches a wrong formula before the arithmetic begins.
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