Example: bachelor of science
SPECTROPHOTOMETRY (QUANTIFICATION OF NUCLEIC ACIDS
Spectrophometric measurements •The A260/280 ratio shows the purity of the sample analysed. •Pure DNA sample gives a 260:280 ratio of ˷1.8 and for pure RNA the ratio is ˷ 2. •A260/230 ratio indicates the presence of organic contaminants, such as (but not limited to): phenol, TRIzol, chaotropic salts and other aromatic
Tags:
Information
Domain:
Source:
Link to this page:
Documents from same domain
Beginning Perl for Bioinformatics - CGIAR
hpc.ilri.cgiar.orgIT-SC $ Beginning Perl for Bioinformatics James Tisdall Publisher: O'Reilly First Edition October 2001 ISBN: 0-596-00080-4, 384 pages This book shows biologists with little or no programming
INTRODUCTION TO REVERSE TRANSCRIPTION PCR (RT-PCR)
hpc.ilri.cgiar.orgPrinciple of PCR 1 1. The reaction’s temperature is raised to 95oC to denature all double stranded DNA into single strands: Denaturation 2. The temperature is then lowered to 55-65oC to allow the primers to bind to your gene of interest: Annealing 3.
260/280 and 260/230 Ratios - CGIAR
hpc.ilri.cgiar.orgSpectrophotometer to results obtained using other spectrophotometers, it is important to ensure that the pH of an undiluted sam-ple measured on our instruments is at the same pH and ionic strength as the diluted sample measured on the conventional spec-trophotometer.
Related documents
INSTRUMENTAL ANALYSIS (I)
www.uotechnology.edu.iqVisible enough energy for valence (bonding) excitations . UV and x-ray enough energy for core (inner) excitations ... Inorganic ions can be quantitatively determined by spectrophotometry by reaction with some ligands to produce colored complexes which have clear absorption in …
ANALYSIS OF PLANT PIGMENTS USING PAPER …
www.chem.purdue.eduULTRAVIOLET/VISIBLE SPECTROSCOPY PURDUE UNIVERSITY INSTRUMENT VAN PROJECT ANALYSIS OF PLANT PIGMENTS USING PAPER CHROMATOGRAPHY AND VISIBLE AND/OR UV SPECTROSCOPY (1-31-96) INTRODUCTION We have seen that all cells must constantly consume fuel molecules to maintain themselves, grow, and reproduce.
Safety Tips for Using UV Lamps - Berkeley Lab
www2.lbl.govinspection, and spectrophotometry. Metal halide arc lamp. A metal halide lamp is an electric lamp that produces light via an electric arc through a gaseous mixture of vaporized mercury and metal halides (compounds of metals with bromine or iodine). The most common metal halide compound used is sodium iodide. Once the arc tube reaches its running
7. ANALYTICAL METHODS
www.atsdr.cdc.gov7.2 ENVIRONMENTAL SAMPLES Water and waste water samples can be analyzed for ammonia by EPA Test Methods 1689 (EPA 2001a), 1690 (EPA 2001b), and 349.0 (EPA 1997).