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Why uracil is used in hplc calibration?
higly unretainable and has high absorption at 260 nm
Pictures of science apparatus used in school labs I need pictures of science apparatus used in school labs?
To get all of kinds science equipment/apparatus go to Wikipedia.com and look up pH meter, high performance liquid chromatography (HPLC), gas chromatography mass spectroscopy (GC/MS), pipettes, vortex, electrophoresis, and a desiccator. This should get you started.
How can DNA be used in crimes?
DNA is something like hair or finger prints, it makes it easier to find the suspect because only one person in the world can have a specific pattern on their finger. Even twins have different ones. Hair can be very different to someone elses. The more clues that direct to one suspect make it easier to find the truth.
Why spectrofluorometry potentially more sensitive than spectrophotometry?
Due to luminescence (i.e fluorescing capability of molecule), which is inherently more sensitive then absorption. Imagine dark stadium, 1 flashlight turns on. You can see it. That's luminescence. Now imagine the stadium with 500 flashlights on and 1 gets turned on. You won't really notice, i.e. less sensitive, like absorption. In luminescence and spectrofluorometry the background is dark with all the other non-fluorescing molecules. The ones the fluoresce are clearly seen and can be detected to individual molecules.
What is system suitability parameters in hplc?
SST is an integral procedure to be done in every drug product analysis (qualitative or quantitative). USP-(621) Chromatography gives the requirements for SST and acceptance criteria, unless it is specified in the specific USP-Monograph. Getting the results conform SST requirements means that you get the permission to go ahead with analysis the contrary means that some changes must be done within the frame of USP-(621) Chromatography. Normally with SST parameters we understand what is required by USP, EP,BP,JP,DAB, that is: %RSD<2%(5 injections) and %RSD>2%(6 injections), retention factor>2,tailing factor<1.5, selectivity>1 and resolution>1.5. Having such parameters means that system as whole works properly and you can proceed with the analysis.
What is the duration of Hand aufs Herz?
The duration of Hand aufs Herz is 1800.0 seconds.
When did Hand aufs Herz end?
Hand aufs Herz ended on 2011-09-02.
When was Hand aufs Herz created?
Hand aufs Herz was created on 2010-10-04.
How do you distinguised np-hplc and rp-hplc?
NP-HPLC is "Normal Phase" HPLC, wherein the solvents used are less polar than the substrate in the HPLC column (e.g. using hexane or dichloromethane with a silica HPLC column). RP-HPLC is "Reverse-Phase" HPLC, wherein the solvents used are more polar than the substrate in the HPLC column (e.g. using Water and Methanol with a octadecylsilane (ODS or C18) column).
Which one is advanced gc or hplc?
HPLC is advanced
Retention time calculation for hplc?
why RT was shifting & how to RT calculation in HPLC
What is C8 and C18?
HPLC columns. (HPLC - High Performance Liquid Chromatography.)
Definition of standard in HPLC?
Answer: HPLC standards are an indispensible tool for analytical HPLC applications. They are used to monitor column performance & calibrate detector response.
What are the ratings and certificates for Wir wollten aufs Meer - 2012?
Wir wollten aufs Meer - 2012 is rated/received certificates of: Argentina:13
What type of species can be separated by HPLC but not by gas liquid chromatography?
mixture of enantiomers can be separated by HPLC
What is rs-hplc?
"RS-HPLC method" means "Related Substance HPLC Method".
What is difference bet GLC and HPLC?
GLC has a stationary liquid phase and gas moving phase HPLC had a stationary solid phase and liquid moving phase HPLC is done under high pressure. HPLC can be used for thermally unstable compounds as opposed to GLC HPLC can be used for polar or low volatile compounds as opposed to GLC
