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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
  • Qty/ea: 1
EW-99574-05
In stock.
$25.00 USD/EACH

Qty:

Oakton Reagent Kits for Colorimeters, for Total Chlorine and Ozone Testing; 100 tests/kit

  • Product Type: Colorimeter reagent/standard
  • Tests/kit: 100
  • Qty/ea: 1
EW-35645-66
In stock.
$29.00 USD/EACH

Qty:

Oakton Reagent Kits for Colorimeters, for Free Chlorine Testing; 100 tests/kit 35645-64

  • Product Type: Colorimeter reagent/standard
  • Tests/kit: 100
  • Qty/ea: 1
EW-35645-64
In stock.
$29.00 USD/EACH

Qty:

LaMotte 1451 EPA Turbidity Standard, 10 NTU; 60 mL

  • Product Type: Turbidity standard/kit
  • Tests/kit: One 60 mL bottle
  • Qty/ea: 1
EW-05563-33
In stock.
$49.95 USD/EACH

Qty:

LaMotte 1450 EPA Turbidity Standard, 1 NTU; 60 mL

  • Product Type: Turbidity standard/kit
  • Tests/kit: One 60 mL bottle
  • Qty/ea: 1
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
  • Qty/ea: 1
EW-99560-54
In stock.
$18.75 USD/PACKAGE

Qty:

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

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Qty/ea: 1
EW-99574-04
In stock.
$25.00 USD/EACH

Qty:

LaMotte 1452 EPA Turbidity Standard, 100 NTU; 60 mL

  • Product Type: Turbidity standard/kit
  • Tests/kit: One 60 mL bottle
  • Qty/ea: 1
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
  • Output: none
  • Waterproof: No
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
  • Qty/ea: 1
EW-99560-58
In stock.
$18.75 USD/PACKAGE

Qty:

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

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Qty/ea: 1
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
  • Qty/ea: 1
EW-99560-11
In stock.
$17.00 USD/EACH

Qty:

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

  • Product Type: Water Testing Kit
  • Tests/kit: 50
  • Qty/ea: 1
EW-99574-18
Usually ships in 3 days.
$75.00 USD/EACH

Qty:

Oakton Reagent Kits for Colorimeters, pH Indicator (Phenol Red); 50 tests/bottle

  • Product Type: Colorimeter reagent/standard
  • Tests/kit: 50
  • Qty/ea: 1
EW-35645-60
In stock.
$26.50 USD/EACH

Qty:

LaMotte Chlorine test kit (Tests/kit: 100)

  • Product Type: Water Testing Kit
  • Tests/kit: 100
  • Qty/ea: 1
EW-99565-12
Usually ships in 6 days.
$21.00 USD/EACH

Qty:

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Home  >  Colorimetry Reagents