Table of Contents
How long does bluelab pH last?
approximately 18 months
How long will my Bluelab pH Pen last? Bluelab’s pH products are charged with reference material which expends over time and use. The average life span of a pH pen is approximately 18 months.
How do you clean bluelab?
Gently brush around the glassware with a few drops of Bluelab pH Probe Cleaner or mild detergent and a soft toothbrush. Rinse well to remove all traces of detergent.
How often should I calibrate my bluelab pH pen?
once a month
Calibrating your pH pen or probe will ensure accurate readings. To get the best from your pH product, we recommend calibrating once a month.
How do you store KCl solution?
Always keep your pH electrode moist. We recommend that you store your electrode in a solution of 4 M KCl. If 4 M KCl is not available, use a pH 4 or 7 buffer solution. DO NOT store electrode in distilled or deionized water—this will cause ions to leach out of the glass bulb and render your electrode useless.
What should I store my pH probe in?
Firstly, you should make sure you always keep your pH electrode moist, the best solution to submerge the probe for long and short term storage is 4M Potassium Chloride Solution (KCl).
Can you reuse pH buffer solution?
Always Use Fresh, Unused, Unexpired pH Buffers for Calibration. You never want to re-use buffers for calibration. Once buffers are used for calibration, they are assumed contaminated and should not be used again. Reusing buffers can lead to slow responding pH probe performance or the inability to calibrate at all.
Why is it necessary to immerse and store the pH meter in saturated KCl What is the purpose of saturated KCl?
Potassium chloride (KCl) acts as a source of chloride ions for the electrode. The advantage of using KCl for this purpose is that it is pH-neutral. Typically, KCl solutions of concentrations ranging from 3 molar to saturated are used in pH meters.
What should pH probes be stored in?
potassium chloride (KCl)
pH probes should be stored in a potassium chloride (KCl) solution to maintain the probe’s internal chemistry.
Why should pH electrode kept in KCl solution?
Does buffer need to be refrigerated?
In the case of buffers with proteins, it is a different story. These buffers such as TBSA or PBS-BSA and the like, have a shelf-life that is shorter because these can be attacked by microorganisms that can thrive on the proteins. These must be refrigerated at all times.
Can you store pH buffer solution?
pH buffer solutions should always be stored in a cool dry place and should be discarded responsibly if any remains after the expiry date, which is printed on the bottle.
Why must the electrode of the pH meter be always immersed in a solution of KCl?
DO NOT store electrode in distilled or deionized water—this will cause ions to leach out of the glass bulb and render your electrode useless. After storage, you may notice white KCl crystals forming outside your electrode. This will not interfere with measurements. Simply rinse the electrode and blot dry before use.
What is pH probe KCl storage solution?
Our Bluelab pH Probe KCl Storage Solution is a storage solution designed specifically for use with Bluelab pH Pens or pH Probes. Storage solution is used to ensure a pH probe is kept in ideal conditions during storage, while the probe is not in use.
Why does BLUElab KCl solution contain pure KCl?
Our Bluelab KCl solution only contains pure KCl, which is also at the same mix strength as the gel that is inside our pH probes. For this reason, when you hydrate or store your pH probe in our KCl solution, this helps to re-vitalise the KCl reference solution that is inside your pH probe.
Why can’t I use pure water with my pH probe?
Pure water will affect the chemistry of your reference solution inside of your pH probe, and this will cause the probe or pen to fail prematurely. Our Bluelab KCl pH Probe Storage Solution is available in 20ml, 100ml and 250ml sizes.
How often should I use the pH probe solution?
We recommend daily use of the pH probe storage solution – fresh application is recommended once per week (a few drops in your probe storage cap at the end of every week should be sufficient).