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    • Mr. Pharwat ( General manager)     TEL 095-614-1554
    • Mr. Chollophat ( Sale manager ) TEL 087-804-4747
    • Mr. Narumon ( Human resoucer )           TEL 081-628-5060
    • Charanassociate co. ltd (office) TEL 02-1851383-4 , 02-712-5619-20
    • Charanassociate co. ltd (Sale department)TEL 094-478-8647

  ABOUT  THE COMPANY 
  CHARANASSOCIATE  .CO.LTD 
  Whose registered address is at  723/2 Soi Thonglor
  Sukhumvit55  Road, Khongtan -nue ,Wattana, Bangkok 10110 
  Thailand. The company has been  operating since 1982 which is 
  about 34 years from now.  Our main business is the distribution 
  of laboratory equipment, in general for industrial firms and 
  Government sectors i.e  Universities, Colleges, Institute of 
  Technologies and research centers Equipments list include main
  products such as: Autoclave, Balance ,Water bath, Block Heater,
  Bomb Calorimeter, Centrifuge, Flame photometer,  
  Freezer, Furnace, Homogenizer, Heating mantle, Melting point,
  Shaker, Shaking water bath , Utrasoinc bath , Water still etc
Product/Service
Product/Service >>> Atomic Absorption Spectrophotometer

Atomic Absorption Spectrophotometer

Atomic absorption spectrometry Atomic absorption spectrometry (AAS) is an analytical technique that measures the concentrations of elements. Atomic absorption is so sensitive that it can measure down to parts per billion of a gram (µg dm–3 ) in a sample. The technique makes use of the wavelengths of light specifically absorbed by an element. They correspond to the energies needed to promote electrons from one energy level to another, higher, energy level. Atomic absorption spectrometry has many uses in different areas of chemistry. Clinical analysis. Analysing metals in biological fluids such as blood and urine. Environmental analysis. Monitoring our environment – eg finding out the levels of various elements in rivers, seawater, drinking water, air, petrol and drinks such as wine, beer and fruit drinks. Pharmaceuticals. In some pharmaceutical manufacturing processes, minute quantities of a catalyst used in the process (usually a metal) are sometimes present in the final product. By using AAS the amount of catalyst present can be determined. Industry. Many raw materials are examined and AAS is widely used to check that the major elements are present and that toxic impurities are lower than specified – eg in concrete, where calcium is a major constituent, the lead level should be low because it is toxic. Mining. By using AAS the amount of metals such as gold in rocks can be determined to see whether it is worth mining the rocks to extract the gold. 
atoms there is in the vapour, the more radiation is absorbed. The amount of light absorbed is proportional to the number of lead atoms. A calibration curve is constructed by running several samples of known lead concentration under the same conditions as the unknown. The amount the standard absorbs is compared with the calibration curve and this enables the calculation of the lead concentration in the unknown sample. Consequently an atomic absorption spectrometer needs the following three components: a light source; a sample cell to produce gaseous atoms; and a means of measuring the specific light absorbed.

ICE™ 3300 AAS Atomic Absorption Spectrometer Thermo fisher scientifice

Code: 001275
Price 0.00 THB (Ref. 0.00 USD)
ICE™ 3300 AAS Atomic Absorption Spectrometer Thermo fisher scientifice
Availability : Out of Stock
 
  อีเมล์บอกเพื่อน
ICE™ 3400 AAS Atomic Absorption Spectrometer Thermo fisher scientifice

Code: 001276
Price 0.00 THB (Ref. 0.00 USD)
ICE™ 3400 AAS Atomic Absorption Spectrometer Thermo fisher scientifice
Availability : Out of Stock
 
  อีเมล์บอกเพื่อน
ICE™ 3500 AAS Atomic Absorption Spectrometer Thermo fisher scientifice

Code: 001277
Price 0.00 THB (Ref. 0.00 USD)
ICE™ 3500 AAS Atomic Absorption Spectrometer Thermo fisher scientifice
Availability : Out of Stock
 
  อีเมล์บอกเพื่อน
ICE™ 3000 series AAS Atomic Absorption Spectrometer Thermo fisher scientifice

Code: 001278
Price 0.00 THB (Ref. 0.00 USD)
ICE™ 3000 series AAS Atomic Absorption Spectrometer Thermo fisher scientifice
Availability : Out of Stock
 
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