pH buffers & conductivity standards

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Affiche 49 - 72 de 427 produits
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Buffer solution pH 9,180 ±0,01 (25 °C), ROTI®Calipure ready to use, 500 ml - Luminix HealthCarl Roth
Carl Roth Buffer solution pH 9,180 ±0,01 (25 °C), ROTI®Calipure ready to use, 500 ml
A partir de €24,12
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Buffer solution pH 3,78 ±0,01 (25 °C), Ph. Eur., Chapter 2.2.3, 500 ml, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 3,78 ±0,01 (25 °C)
A partir de €79,25
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Buffer solution pH 5.00 ±0.01 (20 °C), ROTI®Calipure ready to use, 250 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 5,00 ±0,01 (20 °C)
A partir de €21,78
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Buffer solution pH 4,01 ±0,01 (25 °C), Ph. Eur., Chapter 2.2.3, 500 ml, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 4,01 ±0,01 (25 °C)
A partir de €79,25
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Buffer solution pH 4.00 ±0.01 (20 °C), ROTI®Calipure, tinted red, 250 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 4,00 ±0,01 (20 °C)
A partir de €18,90
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Buffer solution, pH 10.00, 500mlWindaus
Windaus Buffer solution, pH 10.00, 500ml
€8,20
Buffer solution, pH 4.00, 1000mlWindaus
Windaus Buffer solution, pH 4.00, 1000ml
€13,07
buffer solution ph 4.01 and 7.01 pH, each 5 sachets with 20 ml, Certificate ofHanna Instruments
Hanna Instruments buffer solution ph 4.01 and 7.01 pH, each 5 sachets with 20 ml, Certificate of
€28,00
Buffer solution pH 4.62 ±0.01 (20 °C), ROTI®Calipure ready to use, 1 l, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 4,62 ±0,01 (20 °C)
€40,35
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Buffer solutionpH 13.00 ±0.02 (20 °C), ROTI®Calipure ready to use, 250 ml - Luminix HealthCarl Roth
Carl Roth Solution tamponpH 13,00 ±0,02 (20 °C), ROTI®Calipure prête à l'emploi, 250 ml
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Buffer solution pH 9,00 ±0,01 (20 °C), ROTI®Star, borate free, 500 ml, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 9,00 ±0,01 (20 °C)
A partir de €50,22
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Buffer solution pH 4,005 ±0,01 (25 °C), ROTI®Calipure ready to use, 500 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 4,005 ±0,01 (25 °C)
A partir de €24,12
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Buffer solution pH 12,45 ±0,05 (25 °C), Ph. Eur., Chapter 2.2.3, 100 ml, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 12,45 ±0,05 (25 °C)
A partir de €89,51
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Buffer solution pH 7.00 ±0.01 (20 °C), ROTI®Calipure, tinted green, 250 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 7,00 ±0,01 (20 °C)
A partir de €18,90
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Buffer solution pH 9.00 0.01 (20 °C), 500 ml, buffer solution, ready to use - Luminix HealthCarl Roth
Carl Roth Solution tampon pH 9,00 0,01 (20 °C), 500 ml, solution tampon, prête à l'emploi
A partir de €49,86
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Buffer solution pH 6.88 ±0.01 (20 °C), ROTI®Calipure ready to use, 1 l, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 6,88 ±0,01 (20 °C)
€36,45
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Buffer solution pH 6,87 ±0,01 (25 °C), Ph. Eur., Chapter 2.2.3, 500 ml, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 6,87 ±0,01 (25 °C)
A partir de €79,25
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Buffer solution pH 7.4 (20 °C), according to Hellige, 1 l
Luminix Health Buffer solution pH 7.4 (20 °C), according to Hellige, 1 l
€138,75
Buffer solution pH 7.00 ±0.01 (20 °C), ROTI®Calipure ready to use, 250 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 7,00 ±0,01 (20 °C)
A partir de €21,78
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Buffer solution pH 6.00 ±0.01 (20 °C), ROTI®Calipure ready to use, 250 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 6,00 ±0,01 (20 °C)
A partir de €21,78
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Buffer solution, pH 4.00, 500mlWindaus
Windaus Buffer solution, pH 4.00, 500ml
€8,05
Buffer solution pH 4.006,1 LAltmann Analytik
Altmann Analytik Buffer solution pH 4.006,1 L
€94,98
Buffer solution pH 7,41 ±0,01 (25 °C), Ph. Eur., Chapter 2.2.3, 500 ml, plastic - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 7,41 ±0,01 (25 °C)
A partir de €79,25
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Buffer solution pH 11.00 ±0.02 (20 °C), ROTI®Calipure ready to use, 250 ml - Luminix HealthCarl Roth
Carl Roth Bufferoplossing pH 11,00 ±0,02 (20 °C)
A partir de €21,78
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Questions about pH buffers & conductivity standards

Why pH buffers & conductivity standards?

A pH buffer for calibration has a stated pH at a stated temperature, often traceable. A conductivity standard has a stated conductivity. They are not general reagents and they should not be poured back into the bottle. The temperature of the measurement has to be the temperature on the label, or the meter has to compensate.

A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.

This shelf belongs to Buffers & pH solutions, inside Produits chimiques de laboratoire et industriels. Luminix Health distributes this range for laboratory use.

Which shelves sit beside this one?

The neighbouring shelves are Biological buffers (Tris, HEPES, MOPS) and Buffers (other). The category above this shelf is Buffers & pH solutions.

How does ordering and shipping work?

Luminix Health distributes this range from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

Which other categories should I open?

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.