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pH Tests ›
pH-Fix Pehanon Duotest and Tritest Special indicator strips

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Quantofix test papers Aquadur test papers Moisture indicators & other test strips

Test strip reader ›
Reflectometer Quantofix Relax

Qualitative test papers

Water Analysis ›

Visual test kits ›
Visocolor ECO Visocolor Powder Pillows Visocolor HE

Photometric tests ›
Nanocolor Tube Tests Nanocolor standard tests Nanocolor decomposition reagents Nanocolor accessories Tube tests for third party photometers

Photometers ›
Spectrophotometer Nanocolor Advance Spectrophotometer Nanocolor VIS II Filter photometer

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Tests by parameters →

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Extraction thimbles

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Your trusted US source for rapid tests, test strips and kits, and reliable lab supplies from leading manufacturers.

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REF: F-100

Fluoride test paper

Limit of sensitivity: 20 mg/L fluoride...

$44.50

Fluoride test paper quantity

100 test strips in a classic flat box with color scale

REF: 92110

pH test strips, pH Fix 0-14, fixed indicator

Gradation : pH - 0 • 1 • 2 •...

$14.60

pH test strips, pH Fix 0-14, fixed indicator quantity

REF: 92111

pH test strips, pH‑Fix 0-14 PT, fixed indicator

Gradation: pH - 0 • 1 • 2 • 3...

$14.60

pH test strips, pH‑Fix 0-14 PT, fixed indicator quantity

REF: 90754

Potassium iodide starch paper MN 816 N standard grade

Detection Limit: Chlorine (free): 1 mg/L Cl₂ / Nitrite: 1...

$15.10

Potassium iodide starch paper MN 816 N standard grade quantity

100 test strips in a tube

REF: 91312

QUANTOFIX® Peroxide 100

Test sticks for the semi-quantitative determination of hydrogen peroxide (H₂O₂)...

$41.90

QUANTOFIX® Peroxide 100 quantity

REF: 90609

Detection Limit: Traces of water...

$51.30

Watesmo quantity

Ready to Elevate Your Research?

See our full collection of quality scientific test strips, test kits, chemicals, and more.

CTL Scientific Supply is a US distributor of Macherey-Nagel rapid tests such as pH papers, test papers, adhesive dots test papers, environmental test kits, and filter papers. We also stock a large selection of BDH Prolabo chemicals as well as lab equipment.

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CTL Scientific Supply Corp.
1016-3 Grand Blvd.
Deer Park, NY 11729

Email: [email protected]
Phone: 1-631-242-4249
Toll free: 1-888-686-3454

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