Liquid chromatography-mass spectrometry

The researchers compared both biologically produced manganese oxides and chemically produced manganese oxides for the oxidation of diclofenac. Because biologically produced manganese oxides are known to have high specific surface areas and high catalytic reactivity, this substance offers higher rates of oxidation for diclofenac when compared to chemically produced manganese oxides.² If biologically produced manganese oxides prove to completely eliminate diclofenac from the water supply, the…

characteristics Mass spectrometry This technique is useful, because it help us to study masses of molecules or fragments, helping us to measure the mass to charge. In general, the mass spectrometer have a ionizer, vacuum pump, ion accelerator, could have magnets or/and electric field for separate ions , an analyzer tube, and an electron multiplier detector (see figure #). Figure #.- Mass spectrometer. There are different mass spectrometers, for example, transmission quadrupole mass…

Kate Byrne DT299/4 CHEM 4128 Applied Physical & Analytical Chemistry Assignment Liquid Chromatography High Resolution Mass Spectrometry Hyphenated Techniques The term “hyphenated technique” was introduced by Hirschfeld in 1980. It refers to the combination of a chromatographic separation technique and a spectroscopic detection technique to form a new, more efficent instrument. The technique which will be discussed in this case is LC-MS. The aim of combining both techniques is to purify and…

abuse effect the environment. Ultraperformance Liquid Chromatography- Tandem Mass Spectrophotometry Analysis of Stimulatory Drugs of Abuse in Wastewater and Surface Waters1 Ultraperformance liquid chromatography is the best method for analyzing drugs of abuse in different substances including wastewater. Liquid chromatography reduces analysis time and increases efficiency. The purpose of this research, Ultra Ultraperformance Liquid Chromatography- Tandem Mass Spectrophotometry Analysis of…

Risperidone (RIS), an atypical neuroleptic drug, reported to have fewer adverse effects than traditional agents, is effective in psychoses, such as schizophrenia, and other psychiatric illnesses in adults and children, including pervasive developmental disorders (PDD), autism, and attention-deficit disorder (ADD) [1–3]. It acts primarily by selective antagonism of dopamine Type 2 (D2) and serotonin Type 2 (5HT2) receptors in the brain [4–6]. Apart from minor N-dealkylation, the major pathway of…

Abstract: The objectives of this lab are relatively simple: using a separatory funnel to separate a pure substance from a mixture, determine the mass of a sample of caffeine using mass spectrometry, and as a way to separate compounds, use gas chromatography. Using gas chromatography and mass spectrometry you are more accurately able to determine the sample of caffeine. Amount of Caffeine in 100mL sample of Coffee. Introduction: Within this lab, our group was supposed to determine the amount of…

Electron- ionization gas chromatography- mass spectrometry (EI-GC-MS) technique was used as initial methods to differentiate and separate the target compounds. In addition, consecutive confirmation methods was provided by…

Part A Gas Chromatography What is it? Gas chromatography is a variation of chromatography used in analytical chemistry for separating and analysing components that can be vaporised without decomposition ("Gas Chromatography", 2016). This technique involves using a gas as the mobile phase. There are two types of gas chromatography: • Gas-solid chromatography – separates substances on the basis of their different strengths of adsorption on the solid • Gas-liquid chromatography – separates…

One of the most prevalent diseases that affect a big percentage of the population is known as type 2 diabetes or diabetes mellitus. The main issue with this disease is that it can affect the body through different ways. A common definition of type 2 diabetes is when the body resists insulin which affects how the body processes glucose or blood sugar. There are different ways to identify and diagnose type 2 diabetes but one of the most common methods is through urine in which the doctors try to…

TLC and HPTLC Introductions Thin layer chromatography (TLC) is derived from liquid chromatography where liquid serves as mobile phase and thin layer of substance on a flat late surface serves as stationary phase. The thin layer of materials act as sorbent while the mobile phase known as solvent. Solvent will send the solutes through the sorbent depends on the strength of the mobile phase as it dissolved the solute and send them up the plate against gravity ,and resistance of sorbent…