pH

 

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The pH meter measures the voltage potential (mV) difference between the inside of the pH electrode and the outside sample (reference)

Glass pH electrodes develop a voltage across a permeable glass membrane.

The voltage is related to the difference in H+ activity inside and outside the glass.

pH

 

 

 

Electrode Selection

§   Select proper reference for application

§   Select proper junction for application

§   Select appropriate body and membrane profile

•        Standard, semi-micro, micro, rugged bulb, spear tip, flat surface

§   Select appropriate body type

•        Glass body, epoxy body

§   Select refillable or gel filled

 

 

Advantages of Thermo’s ROSS electrode

§   Advantages

•        Variety of body styles

•        Very stable reference

•        Fast response

•        Stable to 0.01 pH in 30 seconds over 50 o C temperature change

•        Drift less than .002 pH units/day

•        0.01 pH precision

•        No Ag/Cl in reference system

§   Can measure samples containing Cysteine ( milk & milk related products )

§   Better for TRIS buffers

§   Ag + is toxic – Ross is preferred choice for biological samples & culture media

•        Ross electrodes are all double junction – popular choice for non aqueous pH measurements such a titration.

 

  best ph electrode

 

Categorie

Ross Ultra Premium pH Electrodes

Ross Ultra Premium pH Electrodes

pH elektrodes met een top performance. Superieur in snelheid en stabiliteit. De beste ROSS elektrodes met unieke 2 jaar garantie. 

Orion Micro Automatic Temperature Compensation (ATC) Probe

Orion Micro Automatic Temperature Compensation (ATC) Probe

Measure the temperature of samples with an ATC probe that is less than 1 mm in diameter. Durable and compact, Thermo now offers a Micro ATC probe specifically designed to measure temperature in extremely small samples. This probe measures the temperature of samples in a 384 well plate or in samples requiring a depth of immersion of 3 mm.  

Orion Basic Electrodes

Orion Basic Electrodes

New product releases for Russell meters and for basic pH measurements.  

 ROSS Ultra Triode

ROSS Ultra Triode

The new addition to the ROSS Ultra® line provides more flexibility and enhanced features for your measurements. These are the first ROSS electrodes to include a built in temperature sensor, making it more convenient to measure your pH samples.

 

Standard pH Electrodes

Standard pH Electrodes

Complete lijst met pH elektrodes voor diverse standaard toepassingen en routine analyses. 

Aqua Pro Professional pH Electrodes

Aqua Pro Professional pH Electrodes

Zeer stabiele en nauwkeurige pH elektrodes met onderhoudsvrije referentie. Ideaal voor watersamples en eiwitomgeving. 

Accessoires

Accessoires

Referentie elektrodes en thermometers voor Automatische Temperatuur Compensatie (ATC's) 

ROSS Premium pH Electrodes

ROSS Premium pH Electrodes

De beste keuze voor samples die in temperatuur variëren. Ongeëvenaarde nauwkeurigheid en snelheid. Perfecte performance in eiwitrijke samples. 

Special pH Electrodes

Special pH Electrodes

pH elektrodes voor bijzondere applicaties, zoals voor micro applicaties en titraties. Ook met de NOCAL pH elektrode: 1 jaar lang geen calibratie nodig! 

Ankersmid Lab          info@ankersmid-lab.nl,  (31)-0548-59 59 79