Indian Council of Agricultural Research
(Agricultural Knowledge Management Information System)

ICAR-Indian Institute of Spices Research, Marikunnu P.O., Kozhikode-673012, Kerala (
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Instrument Details
Instrument/Facility Name: Fast Sequential Atomic Absorption Spectrometer with Graphite Tube Atomizer
Make                                   : Varian, Springvale, Australia ( Presently Agilant, USA )
Model                                  : AA240FS
Specification   :Fast sequential AA 240FS model equipped with GTA and auto sampler with Hollow Cathode Lamps for Ca, Mg, Fe, Mn, Zn, Cu, B, Mo, Cd, Cr, Pb, Ni, Co, Hg and Se

Click to ViewAtomic absorption spectroscopy (AAS) is a spectroanalytical procedure for the quantitative determination of chemical elements using the absorption of optical radiation (light) by free atoms in the gaseous state.

  Working Principles
Click to ViewThe technique makes use of absorption spectroscopy to assess the concentration of an analyte in a sample. It requires standards with known analyte content to establish the relation between the measured absorbance and the analyte concentration and relies therefore on the Beer-Lambert Law. In short, the electrons of the atoms in the atomizer can be promoted to higher orbitals (excited state) for a short period of time (nanoseconds) by absorbing a defined quantity of energy (radiation of a given wavelength). This amount of energy, i.e., wavelength, is specific to a particular electron transition in a particular element. In general, each wavelength corresponds to only one element, and the width of an absorption line is only of the order of a few picometers (pm), which gives the technique its elemental selectivity. The radiation flux without a sample and with a sample in the atomizer is measured using a detector, and the ratio between the two values (the absorbance) is converted to analyte concentration or mass using the Beer-Lambert Law.

  User Instructions
The instrument has wide range of applications in the field of Agriculture, Soil, Water, Fertilizer analysis, pharmaceuticals, Environmental, Food technology, Petrochemicals, Geochemical/Mining, Bio-Monitoring, Nano materials especially for metallic elemental analysis in parts per million and billion levels.1.We take up analysis of soil/ plant/ leaf/ organic manure/ fertilizer sample analysis for the said elemental concentrations. 2.Samples should be supplied in neatly packed & labelled formats with proper details on the nature of sample, purpose and type of analysis required or elements to be analysed. 3.Solid/ liquid samples will be prepared for analysis based on the pre digestion procedures following standard methods 4.If it is pre digested or pre-prepared samples (to be directly fed) – will be fed with proper diluents/ sample preparation methods only 5.Analysis of Clinical/ pathological/ serum samples are restricted, as it may contaminate/clog the parts of the equipment 6.Direct handling of the equipment by the user is restricted and the analysis will be done only by the qualified/ trained lab personnel 7.The results of the analysis is given within 7-10 working days 8.Analysis of samples will be charged as per the fixed norms of ICAR-IISR which can be paid thorough net banking or card payment at the institute.

  Contact Us
Contact No. 04952731410
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  Fast Sequential Atomic Absorption Spectrometer with Graphite Tube Atomizer Charges
Procedure Name
National LAB/R&D
K, Ca, Mg, Fe, Mn, Zn, Cu - Concentration (ppm level)/Cr, Pb, Hg, Ni, Cd, Mo, B -Conc. (ppb level)
Rs. 2500 p
Rs. 500.00
Rs. 2500.0

Additional Rs 100/-towards postal charges if result are to be posted
The Demand Draft should be in favour of "ICAR Unit-IISR, Calicut"
Letter, DD & Samples send to "Head, SAIF, ICAR-Indian Institute of Spices Research, Marikunnu P.O., Kozhikode - 673012, Kerala."