Choice of acid for dissolution of samples for trace metal analysis

Trace metal analysis by AAS or ICP techniques requires introduction of sample into the system in the liquid form. Solids or powders need to be dissolved using acids so that the metals of interest are extracted in the liquid phase. The objectives of sample digestion are: Conversion of metals to soluble salts Removal of matrix interference […]

20% Discount offer on registration for Certificate Course on Atomic Absorption Spectroscopy!

You shall be pleased to know that the Certificate course on Atomic Absorption Spectroscopy is launched. You are invited to attempt the multiple answer choice quiz which will help you evaluate your level of understanding of Atomic Absorption Spectroscopy and will inspire you to know more. We shall reward you with a whopping 20% discount […]

Learning Atomic Absorption Spectroscopy technique is now just a few clicks away!

Please do share your opinion and raise your queries through the comments column. Understanding the basics and operation of Atomic Absorption Spectroscopy is a career objective of every trace metal analyst. Today’s trace metal analyst cannot afford to remain ignorant of this well established technique. Trace metal analysis has made inroads in diverse fields such […]

On-line Certificate Program on Atomic Absorption Spectroscopy – Join Now

Atomic Absorption Spectroscopy provides cost-effective solutions for analysis of trace metals in the entire range of natural and man-made materials such as environmental samples, geological samples, minerals, agricultural produce and soils, foods and drinking water, pharmaceuticals, cosmetics, health food supplements, forensic specimens, archaeological artifacts, toys, etc. AAS offers benefits of speed, sensitivity and precision over the […]

AAS Quiz : Avail Pre-launch Discount on Certificate Course on Atomic Absorption Spectroscopy!

The discount  Quiz was published in June but course launch was delayed .You shall be pleased to know that the Certificate Course on Atomic Absorption Spectroscopy is due for launch any time now and the offer stands extended till midnight of 24th Sept 2014. You are invited to attempt the multiple answer choice quiz which […]

What is the Benefit of using Blazed Gratings in AAS Spectrometers?

A grating is an optical element in a monochromator that disperses the broadband light beam into distinct wavelengths. The desired wavelength is selected by adjusting the exit slit width of the monochromator. The angle of dispersion of the grating depends on the number of lines on the grating. Larger the number of lines (usually 1200 lines/mm […]

Which Technique Should I use for Trace Metal Analysis?

Estimation of trace metals in different studies such as environmental samples, drinking water, pharmaceuticals, foods and beverages, minerals, geological samples, clinical samples and forensic samples are assuming greater importance due to increased awareness on both the nutritional values and harmful effects of trace metals. Before going into the techno-commercial considerations it is necessary to go […]

Dispersion of Light in Spectroscopy

Light sources of spectrometers generally emit a broad spectrum of wavelength bands which require to be separated into individual wavelength lines for use by the spectrometer. The component which plays the role of isolation of a single wavelength and directing it to the sample compartment is called the monochromator. The light dispersion element inside the […]

What Processes take place in the Flame during Atomic Absorption Analysis?

Most of you would have observed the changes in colour of the Atomic Absorption Spectroscopy flame on aspiration of sample into it and wondered as to what processes lead to such changes. A brief introduction to the phenomena has been made in the article Air or Nitrous oxide – which is the right oxidant gas for […]

Know the Performance Parameters of AAS Monochromator

Monochromator is a vital optical component of the Atomic Absorption Spectrometer. It plays the function of isolating the wavelengths of interest from the broad spectrum of wavelengths emanating from the hollow cathode lamp. For a brief description of monochromator component parts and their role browse through the article Dispersion and resolution of light in atomic […]