LAQUAtwin BOX - Storage box for LAQUAtwin meters, solutions and accessories

General Laboratory and Field Samples

• Plastic-body pH electrodes, either refillable or gel-filled, are ideal for field measurement. 
• The glass membrane of refillable electrodes offers an excellent response to low-conductivity water. When the refilling port is covered with the movable slider, the electrode can be used in submerged measurements for up to 30 minutes in a 1m depth of water. 
• Gel-filled pH electrode does not require refilling.
• ToupH electrodes are more impact-resistant than conventional glass-body pH electrodes due to their thick glass membrane. These electrodes are recommended for general laboratory samples.

Examples below:

• 9651-10D (for field-testing)
• 9625-10D (for general-purpose use)
• 9615S-10D Standard ToupH electrode (for general laboratory application)
• 9415-10C Standard ToupH electrode (for general laboratory application)

Precise Measurement

• High stability is required for precise measurement.
• The following electrodes have glass membranes highly sensitive to low-conductivity water and non-aqueous solvents. A movable sleeve is used at the liquid junction for easy cleaning and clog-free measurement.

• • 9481-10C Sleeve ToupH electrode (for viscous and non-aqueous samples)
  • 9681S-10D Sleeve ToupH electrode (for viscous and non-aqueous samples)
  • 6367-10D (for high accuracy pH measurement)

Smaller Volume Samples

• The volume of the sample must be enough to cover the glass membrane and liquid junction of the pH electrode during measurement.
• ToupH electrodes are constructed with a thick glass membrane that is highly resistant to impact and chemicals.
• Long pH electrodes, which come in 3 mm and 8 mm diameters, are suitable for test tubes and tall containers, while micro pH electrodes with 3 mm diameter are perfect for small tubes and trace amounts of samples. 

Examples below:

• 9618S-10D Micro ToupH electrode (for low-volume samples)
• 9418-10C Micro ToupH electrode (for low-volume samples)
• 9680S-10D Long ToupH electrode (for large containers and long tubes)
• 9480-10C Long ToupH electrode (for large containers and long test tubes)
• 6069-10C (for very slender test tubes)

Low Conductivity Samples

• pH measurement of low conductivity samples such as pure water and non-aqueous solvents can be very challenging.
• The glass membranes of the following pH electrodes produce an excellent response in the above-mentioned samples.
  • 9481-10C Sleeve ToupH electrode (for viscous and non-aqueous samples)
  • 9681S-10D Sleeve ToupH electrode (for viscous and non-aqueous samples)
  • 9630-10D (for low conductivity samples)

Solid and Semi-solid Samples

• Needle-type pH electrodes can be used to pierce and penetrate solid samples, such as meat, fruits, and food samples, during measurement.
• Flat pH electrodes and ISFET electrodes are ideal for surface pH measurement of moisture-containing solids such as nutrient agar, skin, cloth, leather, paper, meat, and leaves. 
• ISFET electrodes can also be used in food processing and other applications where glass is prohibited.
  • 6252-10D (for food samples)
  • 6261-10C (for flat surface measurement)