Act as the Central Analytical Laboratory of the Department
Provide state-of-the-art analytical service support to various Divisions of BARC, DAE units, Academic Institutions, Public sector undertakings and Private firms
Provide user specific analytical solutions
Interact and collaborate with other Divisions on their projects
Ensure quality in analytical data
Ensure customer satisfaction
Promote the growth of analytical chemistry in India
Develop newer analytical methodologies to meet customer demands & carry out related research in analytical chemistry for more selective and specific analytical determination
Enhance the application of analytical techniques for human health and welfare
Direct Analysis of Impurities in Solid Metallic ( Iron, Aluminum and copper) Base Samples
\r\n
\r\nElements : Line selection in the range of 130nm to 780 nm allowing analysis of Al, B, Bi, C, Cr, Cu, Co, Mg, Mn, Mo,Nb,Ni,P,Pb,S,Si,Sn,Ti,V,W,Zn,Fe
\r\nConcentration Range : ppm - percentage
\r\nPrecision: 5 %
\r\nPreferred Matrix: Iron, Aluminum and copper base
\r\nOptical mission spectrometers determine analyte concentration via a quantitative measurement of the optical emission from excited atoms. Analyte atoms in metal surface atomized by a spark. These high-temperature atomization process provide sufficient energy to promote the atoms into high energy levels. The atoms decay back to lower levels by emitting light detected by PMT.
An IR based carbon analyser for
\r\nmeasurement of carbon content in the ppm
\r\nrange in uranium metal has been designed
\r\nand fabricated. The set up is based on the
\r\nmeasurement of carbon dioxide liberated
\r\nsubsequent to combustion of carbon
\r\npresent in the sample in oxygen
\r\natmosphere. The system was standardised and deployed for routine analysis of carbon in uranium samples.
Model No. EX 3600M, Jordan Valley, Israel
\r\nPrinciple : Characteristic x-rays, which are produced due to the de-excitation of atoms, provide un-ambiguous signature of the elements present in the sample.
\r\nExcitation Source : Low power (50 watt) Rh X-ray tube / Ge secondary target with provision for seven secondary filters to reduce the continuum background.
\r\nDetector : LEO Si(Li) detector having R=140 ± 10 eV at 5.9 keV of Mn K
\r\nX-rays
\r\nElements Range : Al to U, For Low Z elements He purging and Vacuum
\r\nfacility.
\r\nConcentration range : ppm to % level
\r\nSamples form which can be analysed: Solids, Liquids, Powders
\r\nNature of samples : Metallurgical, Biological, Geological, Forensic etc.
\r\nDetermination of Cr, Cu, Zr, Nb, Al in alloy samples.
\r\nDetermination of As, Hg etc. in ion exchange membranes , which are used for either preconcentration or separation
\r\nAnalysis of brass, steel, incoloy samples for the determination of elemental
\r\ncomposition.
\r\nType of Analysis at ACD - Quantitative, Qualitative, Rapid survey analysis for identification purposes
Instrument : Eurysis Mesures (Aptec)
\r\n45% relative efficiency
\r\nType : Coaxial (p-type)
\r\nResolution : 1.90keV at 1332keV
\r\n0.90keV at 122keV
\r\nCharacteristic gamma radiations emitted from radio nuclides are measured using HPGe detector. Intensity of gamma radiations are proportional to the concentration of radio nuclides
\r\nSamples analysed : environmental, geological, biological, herbal / ayurvedic, forensic, high purity and nuclear materials.
Versatility : Adsorption and desorption isothermal curve analysis, Single and multi point BET method specific surface area analysis, Langmuir method specific surface area analysis, Average particle diameter estimation, T-plot method external surface area analysis, True density analysis, BJH total pore volume and pore size distribution analysis, T-plot method micropore analysis.
\r\nAnalysis Method : static volumetric nitrogen adsorption.
\r\nMeasuring Ranges : 0.01m2/g to no known upper limit(specific surface area)/ 0.35 to 400nm (pore size)
\r\nAccuracy : repeatability errors & le; 1.5%
\r\nSample Types : powders, particle, fibre, flakes and other species
Principle : The equipment is based on inert gas fusion technique. The sample is heated to a high temperature in a graphite crucible with tin flux under inert atmosphere. Hydrogen is detected by thermal conductivity detector
\r\nInstrument : H-TS-DETERMINATOR
\r\nType of measurement : Physicochemical
\r\nMeasurement parameter : Thermal Conductivity
\r\nNature of samples : Solid samples (Metals, alloys and inorganic compounds
\r\nSample size : 0.2-2 g
\r\nLowest measurement capability : 10mg/g
\r\n
Dehydration and Thermo-chromic studies on BaCl2.2H2O and CoCl2.6H2O using DSC - Microscopy System
Surface area is one of the important parameters for characterising the catalytic activity and reactivity of powders and compacts, adsorbents ceramics, resins, pharmaceuticals, paints etc.
\r\nPrinciple: Dynamic, single point BET method based on physical
\r\nadsorption of nitrogen in a specimen from a mixture of helium and
\r\nnitrogen to liquid nitrogen temperature is employed . Adsorption
\r\nand desorption signals record the changes in nitrogen concentration
\r\nof the flowing gas stream using a thermal conductivity detector.
\r\nThe integrated desorption signal is proportional to the volume of the
\r\nnitrogen adsorbed, from which the surface area is arrived at using
\r\nBET equation.
\r\nSamples Analysed : Molecular sieves, activated carbon, catalysts, etc.
Instrument : LECO TC-300
\r\nMethod : Inert Gas Fusion
\r\nRange (at 1gm) : O2- 2 ppm - 0.2%,
\r\n N2- 2 ppm - 0.5%
\r\nReadability : 0.001ppm
\r\nRSD : 3 %
\r\nSamples analysed : Cobalt, steel, zirconium alloys, borides of titanium, chromium and zirconium, molybdenum silicide etc.
\r\nPrinciple : The sample is heated to a high temperature in a graphite crucible with or without nickel flux depending upon the specimen under inert atmosphere. Oxygen is detected as carbon di-oxide by IR detector and nitrogen by thermal conductivity detector.
Instrument : Eurovector – EA 3000
\r\nMethod : Combustion & GC detection
\r\nRange (at 500 ug) : C,H,N,S,O - 0.01% – 100%
\r\nRepeatability C, H, N, S and O : 1.6, 0.1, 2.0,1.5 and 0.8%
\r\nSample size : 500μg to 2500μg
\r\nMinimum detection limit : 100μg
\r\nSamples are taken in tin containers and combusted at 9000C in presence of limited quantity of oxygen (99.995%pure) and the gases formed after oxidation and reduction are separated by Porapack QS and determined by TCD kept at 1150C. High purity helium is used as carrier gas. For oxygen estimation samples are taken in silver containers and pyrolysed at 11000C and formed gases purified by passing through filters and separated by a molecular sieve 5A column and detected by TCD kept at 900 C. Both solid as well as liquid samples can be analysed.
\r\nTypes of sample analysed :
\r\nOrgano metallic compounds, Masonite, Poly aniline, pea powder, Ammonium thorium carbonate, Manure and soil samples, Resin and Jute etc.
Applications : Identification and quantification of volatile and semi volatile organic compounds in complex mixtures eg. pesticides in food, beverages, organic pollutants in water, environmental samples, etc.
\r\nDetermination of molecular weight, structural determination of unknown organic compounds.
\r\n
Gaseous or liquid samples are injected into the injection port, where the
\r\nmatrix is vaporized and transported by a carrier gas through a column
\r\ncontaining an adsorbent Solid phase or absorbing liquid phase coated
\r\non a solid support.Each volatile
\r\nComponent will be partitioned between
\r\nCarrier gas and the solid or liquid phase
\r\nDepending upon the retention time in
\r\nThe column and eluted through the
\r\nColumn at different time and detected
\r\nBy detector.
\r\nCarrier gas : He, Nitrogen, Hydrogen, Ar
\r\nOven: 0-400 °C ~ average boiling
\r\npoint of sample.
\r\nDetectors : FID, TCD, ECD, (MS)
Make : Metrohm
\r\nMethod : Conductometric determination of separated ions
\r\nRange : 0.1 –100 ppm
\r\nDetection limit : 0.01ppm
\r\nReproducibility : < 2%
\r\nIn this technique ions are separated on an ion exchange column followed by a suppressor column to remove eluent ions of high conductance. A conductivity detector is used to measure conductance of ions.
\r\nSamples analyzed
\r\nDifferent types of water samples Cesium iodide,Lithium hydroxide, etc.
Model- Contra AA-300, Analytikjena, Germany
\r\nKey Components of Contra AA-300
\r\nSource: High Pressure Xe arc Lamp
\r\nAtomiser:Air –Acetylene Flame
\r\nMonochromator: High Resolution:λ/∆λ> 145000 (pm-range)
\r\nDetector: Charged Coupled Device
\r\nUsed for Analysis of Alkali, Alkaline Earth, Transition and Heavy metals
\r\n
\r\n
\r\n
Model: novAA800F, Analytik Jena, Germany
\r\nKey Components of novAA800F
\r\nSource: Hollow Cathode Lamp
\r\nAtomiser: Air Acetylene Flame and Hydride generation attachment
\r\nBackground correction: D2
\r\nDetector: Solid state
\r\nUsed for Analysis of Alkali, Alkaline Earth, Transition and hydride forming elements
\r\n
Model: Zeenit 350 P Analytikjena, Germany
\r\nKey Components of Zeenit 350 P
\r\nSource: Hollow Cathode Lamp
\r\nAtomiser: Pyrolytically coated graphite tube
\r\nBackground correction: D2 and Zeeman
\r\nDetector: Photomultiplier tube
\r\nUsed for Analysis of Alkali, Alkaline Earth, Transition and Heavy metals
\r\n
\r\n
For disposal of legacy based organic chemicals and used oils
Inductively coupled plasma–optical emission spectrometer coupled with laser ablation system : For analysis of trace elements in metals and rock samples.
FEATURES :
\r\nWavelength range from 165-800 nm,
\r\nGrating of 4343 and 2400 grooves per mm,
\r\nCharge Coupled Device (CCD) solid state detector,
\r\nSolution uptake 0.9 ml/min,
\r\nADVANTAGES :
\r\n75 elements,
\r\nResolution up to 10 picometer,
\r\n6 mm height of the plasma view,
\r\nSignal to Noise Normal Analytical Zone view,
\r\nFast Sample Analysis,
\r\nNature of samples : Ores, minerals, Alloys, Solutions
Optimised parameters
\r\npH for maximum uptake: 5-9
\r\nSorption capacity : 28 mg g-1
\r\nDesorption by 0.1M HCl
\r\nQuantitative uptake in spiked seawater samples
The use of Certified Reference Materials (CRMs) is a widely recognized tool for the verification of the accuracy of analytical techniques and they form an integral part of quality control systems used. Chemistry group has undertaken a unique programme for the production of CRM/in-house reference materials to cadre the need of DAE and non-DAE institutes as well as to satisfy needs of Indian industrial sector together with the needs of social sectors.
\r\n
A centralised multi parameter laboratory environment monitoring & recording system with local as well as centralised alarm facilities has been designed, developed, fabricated and deployed.
\r\nEach laboratory has been equipped with a compact controller unit with local display and with provision for 5 Electronics & Instrumentation sensor inputs namely temperature, humidity & smoke sensors as well as provision for two more extra sensors.
\r\nAll the monitoring stations in the Division have been inter-connected through a two wire RS-485 based network to a centralised PC based controller unit with inhouse developed front end software.
An IR based carbon analyser for
\r\nmeasurement of carbon content in the ppm
\r\nrange in uranium metal has been designed
\r\nand fabricated. The set up is based on the
\r\nmeasurement of carbon dioxide liberated
\r\nsubsequent to combustion of carbon
\r\npresent in the sample in oxygen
\r\natmosphere. The system was standardised
\r\nand deployed for routine analysis of carbon
\r\nin uranium samples.
Surface area is one of the important
\r\nparameters for characterising the catalytic activity and reactivity of powders and compacts, adsorbents ceramics, resins, pharmaceuticals, paints etc.
\r\nPrinciple: Dynamic, sngle point BET
\r\nmethod based on physical adsorption of
\r\nnitrogen in a specimen from a mixture of
\r\nhelium and nitrogen at liquid nitrogen
\r\n(Designed & developed at ACD)
\r\ntemperature is employed . Adsorption and
\r\ndesorption signals record the changes in
\r\nnitrogen concentration of the flowing gas
\r\nstream using a thermal conductivity
\r\ndetector. The integrated desorption signal is proportional to the volume of the nitrogen adsorbed, from which the surface area is arrived at using BET equation.
TLA technique is a powerful technique to measure the surface loss of materials in the micrometer to nano meter range
Need for the Analysis : Carbon in uranium has considerable effect on its physical properties, a simple and precise method for C determination is often required.
\r\nPrinciple of Detection :
\r\nUranium turning burn at 650°C
\r\nCO2 and moisture get trap in molecular sieve
\r\nBy heating molecular sieve CO2 and moisture get trap in liquid nitrogen
\r\nCO2 and moisture get separated in liquid nitrogen and acetone slurry
\r\nCO2 is expanded in standard volume
The use of Certified Reference Materials (CRMs) is a widely recognized tool for the verification of the accuracy of analytical techniques and they form an integral part of quality control systems used. Chemistry group has undertaken a unique programme for the production of CRM/in-house reference materials to cadre the need of DAE and non-DAE institutes as well as to satisfy needs of Indian industrial sector together with the needs of social sectors.
