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ION CHROMATOGRAPHY (IC) ANALYSIS of AQUEOUS SOLUTIONS

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Analysis of halogens and Ions using Ion Chromatography

Ion Chromatography (IC) is an analytical technique that permits the dynamic separation and detection of anions in a solution.  Aqueous samples are introduced through a sipper onto the column of the IC.  Constituents of the sample pass through the column at a rate dependent upon their affinity to the stationary phase of the column.  Components with a higher affinity are retained longer than those with little or no affinity.  A detector at the end of the column measures the eluate as it exits the column.

Reporting limits – Most anions can be reported to ppb levels.  (Detection limit is dependent on sample.)  Accuracy:  At the 10 ppb level anions can be determined within 15 %.  At the 50 – 500 ppb level anions can be determined within 10%.

COMBUSTION BOMB PREP AND ANALYSIS OF COMBUSTIBLE MATERIALS (INCLUDING POLYMERS)

Solid combustible samples can be analyzed by IC by first digesting the sample in a Combustion Bomb, which drives the ions of interest into solution. An example would be bromine in plastics can be determined more easily than testing for all brominated fire retardants. A negative result indicates no brominated fire retardants are present.

ANALYTES

  • Fluoride (F-)
  • Chloride (CI-)
  • Bromide (Br-)
  • Nitrate (NO2-)
  • Nitrite (NO3-)
  • Sulfate (SO4-2)
  • Phosphate (PO4-3)
  • Iodide (I)
  • Acetate (CHCOOH)
  • Formate (CHO)

TYPICAL SAMPLES ANALYZED

  • Plating Solutions
  • Aqueous Solutions
  • Extracts from sample surfaces

RELEVANT ACCREDITATIONS

Click here for a complete list of accreditations and certifications for all IMR Test Labs locations.