Question: 1, Based on Beer-Lambert law, A = ɛ. c. L, where A, absorbance; ɛ, extinction coefficient; C, concentration and 1, path length. A protein has a molecular weight of 60,000D.. A 1.00 mg/ml solution has an A280 of 0.750. a) Calculate the extinction coefficient in units of cm?mg". b) Calculate the molar extinction coefficient in units of M-1 cm-1.

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter28: High-performance Liquid Chromatography
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Given conditions: all measurements are done in a cuvet with a pathlength = 1 cm.
Question: 1, Based on Beer-Lambert law, A = ɛ.c. L, where A, absorbance; ɛ, extinction coefficient; C,
concentration and 1, path length. A protein has a molecular weight of 60,000D.. A 1.00 mg/ml
solution has an A280 of 0.750.
a) Calculate the extinction coefficient in units of cm?mg".
b) Calculate the molar extinction coefficient in units of M-1 cm-'.
Transcribed Image Text:Given conditions: all measurements are done in a cuvet with a pathlength = 1 cm. Question: 1, Based on Beer-Lambert law, A = ɛ.c. L, where A, absorbance; ɛ, extinction coefficient; C, concentration and 1, path length. A protein has a molecular weight of 60,000D.. A 1.00 mg/ml solution has an A280 of 0.750. a) Calculate the extinction coefficient in units of cm?mg". b) Calculate the molar extinction coefficient in units of M-1 cm-'.
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