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Buffer and calibration solutions are used in chemical analysis and especially in instrumental analysis to improve the accuracy and precision of measurements.

A buffer solution is a solution that is used to keep the pH value of a sample constant. It consists of a weak acid and its corresponding base, which are mixed in a certain concentration to achieve a pH value that usually remains stable at room temperature. Buffer solutions are used to ensure that the pH of a sample remains unchanged during a measurement, which is important to achieve accurate and reproducible results. Buffer solutions are often used in water analysis to determine the pH of water samples.

A calibration solution is a solution used to check or adjust measuring devices such as pH meters, conductivity meters and many others. Calibration solutions consist of known concentrations of an analyte, such as a pH buffer or standard solution, which are used to calibrate the meter to a known scale. The use of calibration solutions ensures that meters make correct and accurate measurements by calibrating the measurement to a standardised scale.


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Pufferlösung 500 ml Flasche, transparente Kunststoffflasche mit weißem Schraubverschluss, grüne Flüssigkeit
Buffer solution
Product number: 890767
Size of bottle: 500 ml | pH buffer: pH 7.00 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€12.29*
Details
blaue Pufferlösung 500 ml Flasche, transparente Kunststoffflasche mit weißem Schraubverschluss
Buffer solution
Product number: 890768
Size of bottle: 500 ml | pH buffer: pH 9.21 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€12.29*
Details
Neomeris Pufferlösung pH 10.01 gelb, 1 Liter Flasche mit Hygieneverschluss
Buffer solution
Product number: 891188
Size of bottle: 1000 ml | pH buffer: pH 10.01 (+-0,02pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 1000 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€18.29*
Details
Neomeris Pufferlösung pH 4.01, rote 70 ml Flasche, kompakte Kalibrierlösung für pH-Elektroden
Buffer solution
Product number: 890691
Size of bottle: 70 ml | pH buffer: pH 4.01 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes red colored

€3.69*
Details
Pufferlösung pH 4.01 Flasche stehend, 250 ml, Hygieneverschluss sichtbar
Buffer solution
Product number: 890687
Size of bottle: 250 ml | pH buffer: pH 4.01 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 250 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.red colored

€9.29*
Details
Neomeris pH 7.00 Pufferlösung 1 Liter Flasche, Frontansicht grünliche Flüssigkeit
Buffer solution
Product number: 891186
Size of bottle: 1000 ml | pH buffer: pH 7.00 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 1000 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€18.29*
Details
Neomeris Pufferlösung pH 10.01, 70 ml Flasche mit gelb eingefärbter Lösung
Buffer solution
Product number: 890694
Size of bottle: 70 ml | pH buffer: pH 10.01 (+-0,02pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes yellow colored

€3.69*
Details
Pufferlösung pH 7.00 Flasche stehend, 250 ml, grünes Lösungsgemisch
Buffer solution
Product number: 890688
Size of bottle: 250 ml | pH buffer: pH 7.00 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 250 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.green colored

€9.29*
Details
pH 9.21 Pufferlösung blau Flüssigkeit, 1 Liter Flasche hygienisch verschlossen
Buffer solution
Product number: 891187
Size of bottle: 1000 ml | pH buffer: pH 9.21 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 1000 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€18.29*
Details
pH. 10.01 Pufferlösung 500 ml Flasche, transparente Kunststoffflasche mit weißem Schraubverschluss
Buffer solution
Product number: 890769
Size of bottle: 500 ml | pH buffer: pH 10.01 (+-0,02pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€12.29*
Details
Pufferlösung pH 9.21, Frontansicht der 250 ml Flasche, blauer Inhalt, Neomeris
Buffer solution
Product number: 890689
Size of bottle: 250 ml | pH buffer: pH 9.21 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.blue colored

€9.29*
Details
pH-Pufferlösung 4.01 pink, 1 Liter Flasche mit Hygiene-Verschluss, Neomeris
Buffer solution
Product number: 891185
Size of bottle: 1000 ml | pH buffer: pH 4.01 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 250 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€18.29*
Details
Neomeris Pufferlösung pH 7.00, 70 ml Flasche mit grünem Inhalt, Kalibrierlösung für pH-Elektroden, Neomeris Pufferlösung pH 7.00
Buffer solution
Product number: 890692
Size of bottle: 70 ml | pH buffer: pH 7.00 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes  green colored

€3.69*
Details
Pufferlösung pH 9.21, 70 ml Kunststoffflasche, blau gefärbt, zur präzisen Kalibrierung von pH-Sensoren
Buffer solution
Product number: 890693
Size of bottle: 70 ml | pH buffer: pH 9.21 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes blue colored

€3.69*
Details
Pufferlösungcht 500 ml Flasche, Frontansi mit weißem Hygieneverschluss pH 4.01
Buffer solution
Product number: 890766
Size of bottle: 500 ml | pH buffer: pH 4.01 (+-0,01pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€12.29*
Details
Pufferlösung pH 10.01, Vorderansicht der 250 ml Flasche mit gelber Lösung
Buffer solution
Product number: 890690
Size of bottle: 250 ml | pH buffer: pH 10.01 (+-0,02pH @25°C)
High quality pH buffer solution for calibration of your pH electrodes Our 250 ml bottle is characterized by a special hygienic closure, which protects the pH buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.yellow colored

€9.29*
Details
Redox Pufferlösung, 650 mV Kalibrierlösung zur präzisen Redox-Elektrodenkalibrierung
Buffer solution ORP
Product number: 890713
ORP Buffer: 650 mV (±5mV @25°C) | Size of bottle: 70 ml
High quality ORP buffer solution for calibration of your ORP electrodes

€6.39*
Details
Redox Pufferlösung 475 mV, Frontansicht der 500 ml Flasche mit blassgelber Flüssigkeit und blauem Etiketttext
Buffer solution ORP
Product number: 890775
ORP Buffer: 475 mV (±5mV @25°C) | Size of bottle: 500 ml
High quality ORP buffer solution for calibration of your ORP electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€20.99*
Details
Redox Pufferlösung 200 mV, transparente 500 ml Flasche mit gelber Flüssigkeit und blauem Etiketttext
Buffer solution ORP
Product number: 890774
ORP Buffer: 200 mV (±5mV @25°C) | Size of bottle: 500 ml
High quality ORP buffer solution for calibration of your ORP electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€22.99*
Details
Redox Pufferlösung, Frontansicht der 250 ml Flasche mit hygienischem Verschluss, Kalibrierlösung
Buffer solution ORP
Product number: 890704
ORP Buffer: 475 mV (±5mV @25°C) | Size of bottle: 250 ml
High quality ORP buffer solution for calibration of your ORP electrodesOur 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€16.99*
Details
Redox Pufferlösung, 200 mV Kalibrierlösung für Redox Elektroden
Buffer solution ORP
Product number: 890711
ORP Buffer: 200 mV (±5mV @25°C) | Size of bottle: 70 ml
High quality ORP buffer solution for calibration of your ORP electrodes

€7.40*
Details
Redox Pufferlösung, 475 mV Kalibrierlösung für Redox Elektroden
Buffer solution ORP
Product number: 890712
ORP Buffer: 475 mV (±5mV @25°C) | Size of bottle: 70 ml
High quality ORP buffer solution for calibration of your ORP electrodes

€6.39*
Details
Redox Pufferlösung, Frontansicht der 250 ml Flasche mit rotem Hygieneverschluss, Kalibrierlösung für Redox Elektroden
Buffer solution ORP
Product number: 890705
ORP Buffer: 650 mV (±5mV @25°C) | Size of bottle: 250 ml
High quality ORP buffer solution for calibration of your ORP electrodesOur 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€16.99*
Details
Redox Pufferlösung 650 mV, transparente Flasche mit gelblicher Lösung und blauem Etiketttext
Buffer solution ORP
Product number: 890776
ORP Buffer: 650 mV (±5mV @25°C) | Size of bottle: 500 ml
High quality ORP buffer solution for calibration of your ORP electrodes Our 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

€20.99*
Details
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