Given the Following Data for Bichromatic Analysis in Which the Analytical

question 10

Multiple Choice

Given the following data for bichromatic analysis in which the analytical wavelength is 510 nm, what is the most likely interference?
Patient sample absorbance at 510 nm = 0.715
Patient sample absorbance at 550 nm = 0.113
Standard absorbance at 510 nm = 0.500
Standard absorbance at 550 nm = 0.113
Standard concentration = 25 mg/L

• A)spectrophotometer flow-cell contamination
• B)hemolysis
• C)the matrix in which the standard is dissolved
• D)non-visual interference in the patient sample

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