pH test strips, pH‑Fix 0–14, fixed indicator
*taxes and shipping not included
Delivery time approx. 5 working days
pH‑Fix strips with chemically bound indicators are the bench mark for pH testing with test strips. The fixation prevents bleeding and therefore contamination of the sample. pH‑Fix 0–14 is also suitable for automatic evaluation with QUANTOFIX Relax.
| Platform | Products for pH determination |
| Brand | pH-Fix |
| Parameter | pH |
| Gradation | pH - 0 • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 |
| Evaluable on reflectometer | QUANTOFIX Relax |
| Instrumental measuring range | pH - 1–13 |
| CE certified | No |
| Shelf life (from production) | 4 Year(s) |
| Storage temperature | 4–30 °C / 39–86 °F |
| Scope of delivery | 100 test strips in a classic flat box with color scale |
| Gross weight (incl. packaging) | 35.1 g / 0.08 lbs |
| Packaging dimensions | 66 x 10 x 90 mm / 2.60 x 0.39 x 3.54 Inch |
| Hazardous material | No |
- Download Instruction / Anleitung / Manuel
- Download Comparison study of pH test strips, MN vs. Merck (EN)
- Download Vergleichsstudie der pH-Teststreifen, MN vs. Merck (DE)
- Download Short summary of the comparative study, MN vs. Merck (EN)
- Download Zusammenfassung der Vergleichsstudie MN vs. Merck (DE)
- Download Flyer QUANTOFIX Relax (EN)
- Download Flyer QUANTOFIX Relax (DE)
- Download Flyer QUANTOFIX Relax (FR)
- Download Flyer Dip & read tests for the beverage industry (EN)
- Download Flyer Schnellteste für die Getränkeindustrie (DE)
- Download Flyer Rapid Tests for Science (EN)
- Download Flyer Rapid Tests for Schools (EN)
- Download Brochure Dip & Read Tests (EN)
- Download Katalog Schnellteste (DE)
Just dip - and read!
Users of pH-Fix test strips from MACHEREY‑NAGEL benefit from a high quality product. It is easy to handle and provides outstanding measurement safety over the complete pH range.
pH-Fix test strips
Choose the more precise results!*
- Reliable pH tests
- User-friendly handling
- Precise color match
Test winner pH-Fix - Advantages and accuracy
Superior in comparative study
MACHEREY-NAGEL pH-Fix test strips perform with the better hit rate according to our comparative study! In our tests, pH-Fix provided the more reliable pH values compared to the competitor product (MQuant®*** pH 0–14/Merck***).**
Longer test strips
The long hydrophobic plastic handle protects the user from hazardous or aggressive samples and allows pH testing in narrow and deep vessels. The long test strip proves a great advantage in usability compared to other products!
Perfect color matching and clear design
The brilliant color scale on the test strip box allows exact comparison with the color developing on the test strip pads. Especially the clear design enhances the user’s ability to determine the pH value quickly and intuitively.
QUANTOFIX Peroxide comparative study
Check out the comparative study and convince yourself of QUANTOFIX Peroxide!
Application and technology
Dip & Read – Results within seconds
Users of pH-Fix test strips from MACHEREY‑NAGEL benefit from a high quality product. It is easy to handle and provides outstanding measurement safety over the complete pH range.
Patented technology prevents contamination
The indicator is covalently bound on the pads and does not bleed into the sample. Therefore, the test strips can be left in the sample for an indefinite time without contaminating it.
Wide range of applications
Users worldwide appreciate pH-Fix test strips. They are the standard method for easy and economic pH determination in:
- Aquaculture
- Chemical laboratories
- Dairies
- Physician offices
- Schools
- Metal workshops
- Forensics
- Food processing industry
- Agriculture
- Industry
- Production
- Hospitals
- Universities
- Fire brigades
- Authorities
- Surface treatment
Instructions and best practice
Determine the pH value of your aqueous sample in three simple steps: dip, shake and read - done! This intuitive handling eliminates application errors and gives you a reliable result in seconds.
Unlike conventional indicator papers, pH-Fix's patented technology ensures that you don't have to worry about leaking indicators contaminating your sample.
Watch the video to explore the differences between pH-Fix and our universal indicator papers or Pehanon and see for yourself how quick, easy and reliable pH determination is with pH-Fix.
Dip test strip for 1 s with all test fields in the sample solution.
Shake off excess sample solution.
Compare with color scale and read off the pH-value.
Sampling with pH-Fix
Sampling is often the biggest source of error in the analytical process. In general, the best practice is to draw an aliquot of the sample and measure the pH in this aliquot. However, when analyzing inhomogeneous samples, drawing an aliquot may alter the composition of the sample. In this case, it is often better to dip the strip directly into the sample. Make sure, to not remove particles from the sample with the test strip. Use pH-Fix test strips only, because indicator papers may release small portions of indicator into the sample.
Documented results with QUANTOFIX Relax
The strip reader QUANTOFIX Relax provides objective pH-readings with a selection of pH-Fix test strips. Measurement data including time date and sample ID are printed, stored and can be transmitted to an information system. This allows the rapid and reliable documentation of test results, which proved to be especially useful for QC departments.
ISO 13485 certified
MACHEREY‑NAGEL is certified as a medical device manufacturer and is among the few manufacturers that can offer pH tests with CE marking.
Order information
Classic flat box with 100 test strips, 6 x 85 mm
- Fits into every pocket
- Plastic box protects test strips and color scale
- Smart corner – avoids pinching of the test strips
- Large variety of measurement ranges available
PlopTop tube with 100 test strips, 6 x 85 mm
- Simple to open and close with one hand
- Extra long tube prevents blockade of cap with jammed strips
- Tube stands firmly on its circular bottom
- Virtually unbreakable
| Test | REF |
|---|---|
| pH-Fix 0–14 | 92110 |
| pH-Fix 0.0–6.0 | 92115 |
| pH-Fix 2.0–9.0 | 92118 |
| pH-Fix 4.5–10.0 | 92120 |
| pH-Fix 6.0–10.0 | 92122 |
| pH-Fix 7.0–14.0 | 92125 |
| pH-Fix 0.3–2.3 | 92180 |
| pH-Fix 1.7–3.8 | 92190 |
| pH-Fix 3.1–8.3 | 92135 |
| pH-Fix 3.6–6.1 | 92130 |
| pH-Fix 4.0–7.0 | 92137 |
| pH-Fix 5.1–7.2 | 92140 |
| pH-Fix 6.0–7.7 | 92150 |
| pH-Fix 7.5–9.5 | 92160 |
| pH-Fix 7.9–9.8 | 92170 |
* Our test proves: Our pH-Fix 0–14 test strip has an 8% higher hit rate than the product MQuant®** pH 0–14 from Merck. Link to our comparative study
** Please refer to our comparative study.
*** Merck and MQuant® are registered trademarks of Merck KGaA, which is in no way affiliated with MACHEREY-NAGEL GmbH & Co. KG.
