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Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

ISE Slope Check Buffers with Chloride Background - HI4000-47

$163.00

HI4000-47 is a set of pH 4 and pH 7 buffer packets (includes 10 packets of each buffer). These buffer packets contain chloride ions to allow an inner electrode check of the ammonia and carbon dioxide ion selective electrodes.

The ammonia and carbon dioxide sensors are both gas sensing, combination ion selective electrodes (ISEs) that contain an internal glass pH element to determine ammonia and carbon dioxide concentrations, respectively. An inner electrode check with the HI4000-47 buffers ensures the pH element is in working condition, permitting accurate ISE measurements.

  • Prepared with high purity chemicals
  • Pre-measured buffers for ease of use
  • Clearly marked lot number and expiration date

HI4000-47 is a package containing pH 4 and pH 7 buffer packets with chloride ions and two plastic beakers. The special pH 4 and pH 7 buffers have a chloride background to verify the inner pH glass assembly housed within the ammonia and carbon dioxide gas sensing ISEs.

Before assembling an ammonia or carbon dioxide ISE for the first time, or if reactivating after storage, the inner glass assembly should be conditioned and tested as a pH electrode. The pH buffer packets can be added to 50 mL of deionized or distilled water and the sensor assembly carefully immersed in solution. When the mV measurement in each buffer solution is stable and recorded, the mV difference can be calculated. A calculated mV difference equal or greater than 160 mV is acceptable for temperatures between 20 and 25℃.

SKU HI4000-47
Name ISE Slope Check Buffers with Chloride Background – HI4000-47
Certificate of Analysis No
Package packets and beakers
Quantity 10 packets each buffer; 2 beakers

ISE Slope Check Buffers with Chloride Background – HI4000-47

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.


Free standard delivery:

We offer free delivery within Australia, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient’s location.


Same-day express delivery:

Place your order before 1 PM Monday to Friday for the same-day express shipping. Delivery times may vary depending on the courier service and the recipient’s location.

Please note that we do not offer shipping to PO Box addresses.

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Please note that we do not offer shipping to PO Box addresses.