Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Atomic absorption spectrophotometry:
Atomic absorption spectrophotometry (AAS) concerns the absorption of radiation by the atomised analyte element in the ground state. The atomisation is achieved through the thermal energy of the flame or electrothermally within an electrical furnace. The wavelength(s) of the radiation absorbed and the extent of the absorption form the basis of the qualitative and quantitative determinations respectively. As atomic absorption spectrophotometry is not an absolute method of analysis, the routine analytical methodology for quantitative determinations using AAS is based on calibration method. Besides that the internal standard method and standard addition methods are also employed.
A typical atomic absorption spectrophotometer consists of a source delivering the characteristic resonant radiation of the analyte, an atom reservoir into which the analyte is introduced and atomised, a monochromator, a detector and a readout device. In a typical flame atomic absorption spectrophotometric determination, the radiation from a hollow cathode lamp (or electrodeless discharge lamp) is made to fall on the sample of the analyte aspirated within the flame (or in the cuvette of an L'vov graphite furnace), while a part of it is absorbed. A transmitted radiation is then dispersed through a monochromator and sent to the detector. The detector output is suitably processed and is displayed by appropriate readout device. Like, UV-VIS spectrophotometers the atomic absorption spectrophotometers are also of two types' viz., single beam atomic absorption spectrophotometers and double beam atomic absorption spectrophotometers.
After the treatment of A with concentrated H 2 SO 4 and acetonitrile under thermodynamic conditions, only E formed that was subsequently hydrolyzed to B. Draw the structure of
Distillation under reduced pressure - Purification of organic compounds This process is employed for the purification of high boiling liquids and liquids that decompose at o
Q. Explain about Coordination Isomerism? Coordination Isomerism: If the complex is a salt having both cation and anion as complex ions then the ligands can exchange position
mechanism of bachmen reaction
Draw a typical triglyceride and name its building blocks. Mark centres of chirality. The reaction cascade exact to fatty acid degradation is called "β-oxidation". It take
hybridization in hydroxyl group
preparation of succinic and oxalic acid
Applications of potentiometry: One of the most common and earliest applications of potentiometry is pH determination, and titration for the determination of electro active spe
factors affecting TGA
There are numerous methods for shielding metals from corrosion (iron from rusting). Some of these methods are being discussed as follows: 1. Barrier protection; in this me
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd