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Home  >  Colorimetry Reagents

Colorimetry Reagents

Colorimetry Reagents

For centuries scientists have used a colorimetric reagent to determine quality in compounds. Technology has made using a colorimetric reagent a bit easier but no less potent. Colorimetry tests are quick and easy and often cost less than alternative test methods. A colorimeter is an optical measurement that uses color to quantitatively determine the concentration of a compound in a sample. A colorimetric reagent for the compound of interest is added to the sample being tested. A color will develop in proportion to the level of compound present, and can be measured by the instrument. Many parameters have EPA approval and meet the regulatory requirements for many industries. Choose from single parameter or multiparameter colorimeters to meet your application. The process is founded upon Beer's Law; which describes the relationship between the amounts of light transmitted and the concentration of the sample. The typical instrument used in this process has one or more fixed wavelengths--to match the maxima (strong peak) of the components spectrum. In free chlorine the DPD spectrum has a maxima peak near 520nm, the wavelength for the test. If you want more information about selecting the right colorimetric reagent for your application contact a Cole-Parmer Technical Expert today.
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Hach Colorimeter Test Kit, total chlorine (USEPA), 0 to 2.0 ppm, 100/kit

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Range: 0 to 2.0 ppm
EW-99574-05
In stock.
$25.00 USD/EACH

Qty:

Replacement free chlorine test kit, for Oakton colorimeters, 100 tests/kit.

  • Product Type: Water Testing Accessories
  • Tests/kit: 100
  • Brand: Oakton
EW-35645-64
In stock.
$29.00 USD/EACH

Qty:

Replacement total chlorine test kit, for Oakton colorimeters, 100 tests/kit.

  • Product Type: Water Testing Accessories
  • Tests/kit: 100
  • Brand: Oakton
EW-35645-66
In stock.
$29.00 USD/EACH

Qty:

LaMotte 1450 Turbidity Standard, 1 NTU; 60 mL

  • Product Type: Turbidity standard/kit
  • Tests/kit: One 60 mL bottle
  • Range: 1 NTU
EW-05563-31
In stock.
$49.95 USD/EACH

Qty:

DPD Free Chlorine Reagent Powder Pillow Packs, 10 mL, 100 tests

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Range: 0 - 2.00
EW-99560-54
In stock.
$18.75 USD/PACKAGE

Qty:

LaMotte 1451 Turbidity Standard, 10 NTU; 60 mL

  • Product Type: Turbidity standard/kit
  • Tests/kit: One 60 mL bottle
  • Range: 10 NTU
EW-05563-33
In stock.
$49.95 USD/EACH

Qty:

Hach Colorimeter Test Kit, free chlorine (USEPA), 0 to 2.0 ppm, 100/kit

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Range: 0 to 2.0 ppm
EW-99574-04
In stock.
$25.00 USD/EACH

Qty:

LaMotte 1452 Turbidity Standard, 100 NTU; 60 mL

  • Product Type: Turbidity standard/kit
  • Tests/kit: One 60 mL bottle
  • Range: 100 NTU
EW-05563-35
In stock.
$49.95 USD/EACH

Qty:

LaMotte 0290-6 Turbidity Sample Test Tubes/Vials; 6/Pk

  • Product Type: Sample bottle/vial/cell
  • Tests/kit: Six test tubes per pack
  • Manufacturer number: 0290-6
EW-05563-66
In stock.
$31.75 USD/PACKAGE

Qty:

DPD Total Chlorine Reagent Powder Pillow Packs, 10 mL, 100 Tests

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Brand: Lovibond
EW-99560-58
In stock.
$18.75 USD/PACKAGE

Qty:

Hach Colorimeter Test Kit, total phosphorus (USEPA), 0 to 3.5 ppm, 50/kit

  • Product Type: Water Testing Kit
  • Tests/kit: 50
  • Range: 0 to 3.5 ppm
EW-99574-18
Usually ships in 3 days.
$75.00 USD/EACH

Qty:

Replacement pH test kit, for Oakton colorimeter, 50 tests/kit.

  • Product Type: Water Testing Accessories
  • Tests/kit: 100
  • Brand: Oakton
EW-35645-60
In stock.
$26.50 USD/EACH

Qty:

DPD Free Chlorine Reagent Powder Pillow Packs, 5 mL, 100 Tests

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Brand: Lovibond
EW-99560-52
In stock.
$18.50 USD/PACKAGE

Qty:

DPD Powder Pop Dispenser for Free Chlorine, 100 Tests, 5 mL

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Brand: DPD Powder Pop
EW-99560-11
In stock.
$17.00 USD/EACH

Qty:

LaMotte Chlorine test kit (Tests/kit: 100)

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Range: Chlorine: 0 to 4.0 ppm
EW-99565-12
Usually ships in 4 days.
$21.00 USD/EACH

Qty:

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Home  >  Colorimetry Reagents