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Quantitative elemental analysis:
The instrument used for AFS consists of atom reservoir that might be a flame or a furnace etc., a basic source emitting the features absorption radiation of the element being determined, a monochromator, detector, signal processor and readout device. The basic source is commonly a hollow cathode lamp or a tuned laser.
Atomic fluorescence spectrometry is meaningful in study of electronic structure of atoms and in quantitative elemental analysis. Applications involves determination of Pb, Hg, Cd, As (III), As (V) Sb(III), Sb(V), Se(IV,VI), etc within clinical, environmental, geological and metallurgical, pharmaceutical and petrochemical samples. The major benefits of fluorescence measurements as compared to absorption measurements are the greater sensitivity as the signal has extremely low background and lesser interferences. It does suffer from the interference from matrix emission, oxide creation and scattering because of organic solvents but not as severely as the other atomic spectrometric methods.
what is meant by 100% current efficiency in electrogravimetry
A township of 25,000 inhabitants is to discharge treated domestic sewage to the neighboring stream which has a least flow of 0.25 m3/s and a 5-day BOD of 3 mg/L. Water consumption
electrode system
Sulpha drugs: These are synthetic chemotherapeutic agents who consist of sulphonamide, -SO 2 NH 2 set in their organization. These were the firstly effective chemotherapeutic
Properties of Bi-phenyl - Hydrocarbon Bi-phenyl is a colourless solid, melting point 71°C. It goes through usual electrophilic replacement reactions. As aryl set are electron w
Q. Explain about Hydrogen Sulphide? Hydrogen sulphide is the only thermodynamically stable sulphane. It is a foul smelling and poisonous gas. H 2 S is prepared in the labora
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Explain enantiomer The two structures differ in configuration at both asymmetric carbons. They are enantiomers.
Neoprene (GR: or Polychloroprene or Dupe) Preparation: Neoprene is prepared by the free radical polymerisation of chloroprene in an emulsion system. Starting materials are ac
Q. why is sodium aluminates is a better coagulates then ferrous sulphates or alum? Ans. Sodium aluminates (NaAlO 2 ): It is better coagulant than FeSO 4 and alum because i
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