Answers to all your Biology Questions
|
|
Dictionary » E » Extinction coefficient Extinction coefficientExtinction coefficient (Science: chemistry) a constant used in the beer-lambert law which relates the concentration of the substance being measured (in moles) to the absorbance of the substance in solution (how well the substance in solution blocks light beamed through it from getting out on the other side).
Please contribute to this project, if you have more information about this term feel free to edit this page
Results from our forumOptical density Q... prepared by dissolving 35mg of X in 50 ml of water. What is the molar extinction coefficient of X at 400nm? (mol. wt. of X is 450) (20% of the marks) (ii) Measurements of lactate ...
See entire post
Molar Extinction Coefficient Trouble!nothing. ignore it. A=EbC where E is molar extinction coefficient, b is the path of light in cm, and C is concentration
See entire post
Molar Extinction Coefficient Trouble!... of BCG dye at 614 nm. I have been asked to estimate the molar extinction coefficient for BCG from the graph and show how my value was calculated. The Molecular weight ...
See entire post
Re: Molar Extinction CoefficientSo if I have this data: Absorbance @ 405nm: .875 Concentration (M) of Cr(NO3)3 (aq): .25M Since you're saying that if l = 1cm (standard curvette), then E = A/C so then: .875/.25 = E E = 3.5?
See entire post
Re: Beer Lambert Law... what happened to your exponent on the power of ten? I didn't check the extinction coefficient (now preferably called the molar absorptivity) of NADH. I'll take your word for ...
See entire post
This page was last modified 21:16, 3 October 2005. This page has been accessed 1,336 times. |
© Biology-Online.org. All Rights Reserved.
Register | Login
| About Us | Contact Us | Link to Us | Disclaimer & Privacy
Science Network - Braintrack.com - University Directory | Chemicool.com - Chemistry