Semi-quantitative test strips QUANTOFIX Nitrite 25
*taxes and shipping not included
Delivery time approx. 5 working days
| Quantity | Price/unit |
|---|---|
| To 9 | $41.80 |
| From 10 | $37.00 |
| From 50 | $34.90 |
QUANTOFIX Nitrite 25 test strip enables fast and precise determination of nitrite in liquids. Ideally suited for the food industry, it covers a measurement range of 0.5 to 25 mg per liter. Evaluation is visual or optionally with the QUANTOFIX Relax. Results are available within 60 seconds. Especially suitable for applications like whey or spinach, it provides reliable support in quality control.
Interested? Request your sample using our sample request form!
| Platform | Semi-quantitative test strips |
| Parameter | Nitrite |
| Brand | QUANTOFIX |
| Gradation | Nitrite - 0,5 – 1 – 2 – 5 – 10 – 25 mg/L NO₂⁻ |
| Color change | Nitrite - yellow → red-violet |
| Evaluable on reflectometer | QUANTOFIX Relax (QR3XXXX) |
| Instrumental measuring range | Nitrite - 0,5 - 25,0 mg/L NO₂⁻ |
| Additional reagent | No |
| CE certified | No |
| Storage temperature | 4–30 °C / 39–86 °F |
| Shelf life (from production) | 2 Year(s) |
| Gross weight (incl. packaging) | 35.2 g / 0.08 lbs |
| Packaging dimensions | 40 x 40 x 120 mm / 1.57 x 1.57 x 4.72 Inch |
| Hazardous material | No |
- Download Instruction / Anleitung / Manuel
- Download Applikation QUANTOFIX Nitrit 25 in Molke und Molkepulver (DE)
- Download Application note QUANTOFIX Nitrite 25 in whey and whey powder (EN)
- Download Nota de aplicación QUANTOFIX Nitrite 25 en suero de leche (ES)
- Download Applikation QUANTOFIX Nitrit 25 in Milch und Milchpulver (DE)
- Download Application note QUANTOFIX Nitrite 25 in milk and milk powder (EN)
- Download Nota de aplicación QUANTOFIX Nitrite 25 en leche y leche en polvo (ES)
- Download Applikation QUANTOFIX Nitrit 25 in Buttermilch (DE)
- Download Application note QUANTOFIX Nitrite 25 in buttermilk (EN)
- Download SI_Nitrite_in_buttermilk_ES
- Download Applikation QUANTOFIX Nitrit 25 in Spinat (DE)
- Download Application note QUANTOFIX Nitrite 25 in spinach (EN)
- Download Nota de aplicación QUANTOFIX Nitrito 25 en espinacas (ES)
- Download Flyer QUANTOFIX Nitrat 250 Nitrit 25 (DE)
- Download Flyer QUANTOFIX Nitrate 250 Nitrite 25 (EN)
- Download Flyer Rapid Tests for the Dairy Industry (EN)
- Download Brochure Dip & Read Tests (ES)
MACHEREY-NAGEL Test strips fort he dairy industry
Reliability made in Germany
Trust the test paper experts with over 50 years' experience — competent and dedicated! Because quality and availability are important to us, we continue to rely on our German production facilitiy – from paper manufacturing to finished test strips. This makes us the perfect partner for the dairy industry in the following areas:
Safety in seconds – Precise nitrate monitoring
High levels of nitrate in animal feed can cause it to accumulate in milk, where it is converted into nitrite. Nitrite is particularly toxic to infants. To ensure food and baby food are safe, nitrate and nitrite levels must be strictly monitored. Our QUANTOFIX test strips make monitoring fast, easy and reliable. Find all the necessary information on analysing dairy products in our applications section.
Excellent precision: QUANTOFIX Nitrate 250
Thanks to their extra-large test area, our QUANTOFIX Nitrate 250 test strips deliver highly accurate results, as our comparative study shows. The measurement inaccuracy is less than 5%!
Interested in testing for nitrite as well? QUANTOFIX Nitrite 25 is the perfect complement.
For details on the precision of QUANTOFIX Nitrate 250, please refer to the comparative study. See for yourself!
The 2-in-1 solution: QUANTOFIX Nitrate 100
With two test fields, you can measure both nitrate and nitrite simultaneously using just one QUANTOFIX Nitrate 100 test strip. This saves you both time and money!
Objective and convenient – Our QUANTOFIX Relax
Automation eliminates subjective color perception and provides a quantitative analysis of the test strips with digital documentation. Take your analytics to the next level!
Super easy to clean
The device is designed to prevent direct contact between the sample and the measurement optics. A contaminated test strip holder is easy to clean—even in the dishwasher!
Maximum flexibility
All of our test strips can be evaluated using the printed color scale on each label - for a maximum of flexibility!
No chance for germs – Reliable disinfection monitoring
Hydrogen peroxide, peracetic acid, or chlorine
Disinfection is essential for producing delicious and long-lasting dairy products. Our QUANTOFIX product line offers a wide range of test strips for various disinfectants. Find the right strip for your application!
Reliable residue control
Disinfectants are not beneficial to human health. Check the safety of your dairy products with QUANTOFIX test strips—even in very low concentration ranges.
Focus on quality – pH, pasteurization, minerals
Our classic: pH-Fix
The pH is an important indicator of milk freshness. pH-Fix 6.0 – 7.7 optimally covers the relevant range. pH-Fix technology prevents dyes from leaching into the dairy sample.
Is it hot enough?
Use Phosphatesmo MI and Peroxtemo MI to determine the levels of alkaline phosphatase and lactoperoxidase for precise monitoring of the heating process.
Essential minerals
Determine the mineral content of dairy products quickly and easily with QUANTOFIX Calcium and QUANTOFIX Potassium!
Butter quality
Test the water-butter separation in accordance with DIN 10311 using our perfectly sized WATOR water test papers.
Applications for the analysis of dairy products
Dairy products are usually thick and opaque, which often causes photometric methods to fail. That's why test strips are a better option!
With a slight adjustment to the procedure, samples can be analysed despite their high fat and protein content. Read more about each application in the relevant section.
| REF | Product | Application | Measuring range |
|---|---|---|---|
| 91313 | QUANTOFIX Nitrate/Nitrite | Nitrate/Nitrite Analysis | 10 – 500 mg/L NO₃- |
| 91366 | QUANTOFIX Nitrate 250 | Nitrate Analysis | 4 – 250 mg/L NO₃- |
| 91351 | QUANTOFIX Nitrate 100 | Nitrate/Nitrite Analysis | 3 – 100 mg/L NO₃- |
| 91311 | QUANTOFIX Nitrite | Nitrite Analysis | 0.5 – 80 mg/L NO₂- |
| 91367 | QUANTOFIX Nitrite 25 | Nitrite Analysis | 0.5 – 25.0 mg/L NO₂- |
| 91319 | QUANTOFIX Peroxide 25 | Disinfection monitoring | 0,5 – 25 mg/L H₂O₂ |
| 91312 | QUANTOFIX Peroxide 100 | Disinfection monitoring | 1 – 100 mg/L H₂O₂ |
| 91333 | QUANTOFIX Peroxide 1000 | Disinfection monitoring | 50 – 1000 mg/L H₂O₂ |
| 91340 | QUANTOFIX Peracetic acid 50 | Disinfection monitoring | 5 – 50 mg/L PAA |
| 91341 | QUANTOFIX Peracetic acid 500 | Disinfection monitoring | 50 – 500 mg/L PAA |
| 91342 | QUANTOFIX Peracetic acid 2000 | Disinfection monitoring | 500 – 2000 mg/L PAA |
| 91339 | QUANTOFIX Chlorine Sensitive | Disinfection monitoring | 0.1 – 10 mg/L Cl₂ |
| 91324 | QUANTOFIX Calcium | Mineral Analysis | 0 · 10 · 25 · 50 · 100 mg/L Ca²⁺ |
| 91316 | QUANTOFIX Potassium | Mineral Analysis | 0 · 200 · 400 · 700 · 1000 · 1500 mg/L K⁺ |
| 92150 | pH-Fix 6.0 – 7.7 | pH measurement | pH 6.0 – 7.7 |
| 90612 | Phosphatesmo MI | Detection of alkaline phosphatase | 0.5 % raw milk in pasteurized milk |
| 90627 | Peroxtesmo MI | Detection of lacto peroxidase | 3 % raw milk in UHT-milk |
| 90610 | WATOR | Water distribution in butter | described in DIN 10 311 |
| 90748 | Udder test paper | Mastitis | Initial diagnosis |
