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LC-MS QTOF
•The LC/MS QTOF is a liquid chromatograph-quadrupole time-of-flight mass spectrometer that performs MS/MS using a quadrupole, a hexapole collision cell and a time-of-flight analyzer to produce spectra. The quadrupole selects precursor ions that are fragmented in the collision cell into product ions, which are then impelled to the detector, at an angle perpendicular to the original path.
•QTOF-LCMS excels in the identification of ionizable species with high mass accuracy. This technique can identify exact masses to 4 decimal places.
•Applicable for screening and quantification of pharma and organics in water and wastewater samples.
IRMS
•Isotope Ratio Mass Spectrometer is used for the precise measurement of the total element content and stable isotope ratio in a wide variety of gases i.e., H2, N2, NO, N2O, O2, CO, CO2, CH4, SO and SO2.
•Equipped with NCS elemental analyzer, CryoPrep, High Temperature Elemental Analyzer.
•Used in Environmental Forensics.
GC-MS
•Gas Chromatography Mass Spectrometry combines two powerful techniques to provide the identification of compounds with low detection limits and the potential for quantitative analysis. GC-MS is primarily used for volatile and semi-volatile compounds.
•In Gas Chromatography, a sample is volatilized and carried by an inert gas through a capillary column. The “stationary phase” is bonded to the interior of the column. The time it takes a specific compound to pass through the column to a detector is called its “retention time”, which can be used for identification when compared to a reference.
•In the Mass Spectrometry (MS) step of GC/MS, compounds leaving the GC column are fragmented by electron impact. The charged fragments are detected, and the subsequent spectrum obtained can be used to identify the molecule.
•Used for liquid and gas analysis.
•Equipped with FID, TCD and ECD detectors.
Ion Chromatography
•Ion chromatography, a form of liquid chromatography, measures concentrations of ionic species by separating them based on their interaction with a resin. Ionic species separate differently depending on species type and size.
•Measures concentrations of major anions, such as fluoride, chloride, nitrate, nitrite, and sulfate, as well as major cations such as lithium, sodium, ammonium, potassium, calcium, and magnesium
•Equipped with Conductivity detector, UV detector and Amperometric detector
TOC-TN Analyser
•TOC (Total Organic Carbon) analyzer, which utilizes a catalytic oxidation combustion technique at high temperature (720 ºC), to convert organic carbon into CO2. The CO2 generated by oxidation is measured with a Non-dispersive Infra-Red (NDIR) detector.
•Capable of TC, IC, TOC (= TC-IC), and NPOC measurement.
•720 °C catalytic thermal decomposition / chemiluminescence methods are adopted for Total Nitrogen (TN) measurement.
Basic LC-MS
•Basic Liquid Chromatography Mass spectrometer is used in our lab for chromatographic separation of organic molecules present in water samples, their identification and quantification using Diode Array Detector and Mass Detector. This equipment is meant for targeted analysis only.
•1260 Infinity II Diode Array Detector: Data rate up to 120 Hz; Wavelength range 190 – 950 nm
•Infinity LC/MSD: Mass range 10–2,000 m/z; Mass accuracy ±0.005 u (Da); Maximum scan speed - 10,400 u/sec (Da/sec)
ICP-MS
•Inductively coupled plasma mass spectrometry (ICP-MS) is a type of mass spectrometry that uses an inductively coupled plasma to ionize the sample. It atomizes the sample and creates atomic and small polyatomic ions, which are then detected. It is known and used for its ability to detect metals in liquid samples at very low concentrations.
•Determination of elements with atomic mass ranges 7 to 250
•Detects in the region of nanograms per litre to 10 or 100 milligrams per litre
•The temperature of the plasma is very high of the order of 10,000 K
ATR-FTIR
•Fourier transform infrared spectroscopy -attenuated total reflectance (FTIR–ATR) provides information related to the presence or absence of specific functional groups, as well as the chemical structure of polymer materials. Shifts in the frequency of absorption bands and changes in relative band intensities indicate changes in the chemical structure or changes in the environment around the sample.
•FTIR–ATR spectroscopy can be used to determine the resultant surface chemistry especially following induced chemical or physical modifications.
Potentiostat
A potentiostat is an electronic instrument that is used to control the potential of an electrode in an electrochemical cell. It is a key piece of equipment in electrochemistry. Used for studying the kinetics of electrochemical reactions.
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