Two different methods were investigated for Cu2+ detection in water sample and both methods generated a linear calibration curve as shown below. Which method is more sensitive?
Two different methods were investigated for Cu2+ detection in water sample and both methods generated a linear calibration curve as shown below. Which method is more sensitive?
Chapter8: Sampling, Standardization, And Calibration
Section: Chapter Questions
Problem 8.5QAP
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1,9
![Two different methods were investigated for Cu2+ detection in water sample and both methods generated a linear calibration curve as shown below.
Which method is more sensitive?
[Cu2*] vs instrument response
1.2
Method 1
1
Method 2
0.8
0.6
0.4
0.2
0.2
0.4
0.6
0.8
1.2
[Cu2+], M
O A. Method 2 because the responses gave higher response values
O B. Method 1 because the responses gave smaller response values
O C. Method 1 because the slope is smaller
O D. Method 2 because the slope is larger
instrument response, AU](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F98311ed5-8270-4976-ae37-f6f10b3758b5%2F8ec9d20c-3fbb-4455-ae23-7796dc53d9da%2Ftxphtkt_processed.png&w=3840&q=75)
Transcribed Image Text:Two different methods were investigated for Cu2+ detection in water sample and both methods generated a linear calibration curve as shown below.
Which method is more sensitive?
[Cu2*] vs instrument response
1.2
Method 1
1
Method 2
0.8
0.6
0.4
0.2
0.2
0.4
0.6
0.8
1.2
[Cu2+], M
O A. Method 2 because the responses gave higher response values
O B. Method 1 because the responses gave smaller response values
O C. Method 1 because the slope is smaller
O D. Method 2 because the slope is larger
instrument response, AU
Transcribed Image Text:A chromatographic method used to analyze pharmaceutical drug gives acceptable results when small changes are made in solvent composition, pH,
buffer concentration, temperature, injection volume, and detector wavelength.
The method validation parameter that is closely related to the above statement is
O A. specificity
O B. limit of detection
O C. precision
O D. robustness
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