The samples that are not volatile and are soluble in the mobile phase.
GC can give very resolved sharp peaks with short run time compared to hplc. additionally, there is less compatibility issue in setting an MS up to a GC than HPLC
mixture of enantiomers can be separated by HPLC
Bladder
Yes, melamine can be detected by HPLC (High Performance Liquid Chromatography). HPLC is a common analytical technique used to separate and quantify compounds in a mixture, including melamine. Detection methods such as UV-Vis spectroscopy or mass spectrometry can be used in conjunction with HPLC to identify and quantify melamine accurately.
NO we can not get the samples of dark matter as it is the type of matter in astronomy and cosmology that can not be even seen with telescopes.
GC can give very resolved sharp peaks with short run time compared to hplc. additionally, there is less compatibility issue in setting an MS up to a GC than HPLC
you first have to define what type of pollution. Common ones are air, soil and water. GCMS can be used on air sample tubes or sample trains for flue gas. Soil samples are best analysed by ICP-MS for elemental quantitation. Water samples are often analysed by LC-MS, sometimes by GC-MS
mixture of enantiomers can be separated by HPLC
In the bladder. Or if that's the question: Urine samples should be stored in the fridge if they can't get analysed immediatly.
In HPLC, a standard is a known compound with a defined chemical structure and purity used for comparison and identification purposes. Standards are essential for calibrating instruments, determining retention times, and quantifying unknown compounds in samples during analysis.
HPLC Column is one type of tube containing a stationary phase react with mobile phase to detect peak
HPLC (high pressure liquid chromatography), hair samples and bodily fluids can be tested this way.
Yes, HPLC can be used to analyze histamine and TVB-N (Total Volatile Basic Nitrogen) in food samples. HPLC is a sensitive and selective technique that can separate and quantify various compounds, including histamine and TVB-N, based on their chemical properties. Pre-column derivatization may be required for some compounds to enhance their detection sensitivity in HPLC analysis.
Forensic labs have many purposes, the general use is to analyse gathered evidence and clarify facts. biological samples can be analysed to get a "DNA fingerprint". mobile phones and electrical equipment such as computers are also analysed. there are many more purposes these are just a few
standards are run with samples i.e. several solutions of chemical you are trying to analyse for, of known composition and strengths are run to set up a calibration curve which should be a straight line - absorbance (or signal strength) vs. conc. You then test the unknown sample and can extraploate the concentration of the sample based on your calibration curve. HPLC columns come with a standard chromatogram when purchased so a run with same conditions and sample should give similar retention times.
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).
Chemists are the primary users of the HPLC instruments. High-performance liquid chromatography has uses in a variety of fields including research, manufacturing, medical, and legal.