Часто задаваемые вопросы – Титрование по Карлу Фишеру
В списке часто задаваемых вопросов Вы найдете информацию, относящуюся ко всем областям волюмометрического и кулонометрического титрования по методу Карла Фишера.
Installation
FAQ
When are the septum and the O-rings/PTFE sleeves to be changed?// Installation
FAQ
What are the order numbers for the consumables?// Installation
FAQ
How to service the Dosing and the Exchange Unit? (for volumetric KF titration)// Installation
FAQ
What to do if the pump is not working correctly?// Installation
FAQ
How often is the Dosing/Exchange Unit to be prepared (Preparing/«Prep» function)? (for volumetric KF titration)// Installation
FAQ
Which resolution should my balance have?// Installation
FAQ
What measures are recommended when the volumetric Karl Fischer titrator will not be used or has not been used for a prolonged period?// Installation
FAQ
How to clean the indicator electrode?// Installation
FAQ
How often is the molecular sieve to be changed?// Installation// Installation of coulometric cell
FAQ
How to regenerate the molecular sieve?// Installation// Installation of coulometric cell
Titer determination
FAQ
What is the optimal substance weight for titer determination?// Titer determination
FAQ
How often should the titer be determined?// Titer determination
FAQ
Rise in the values during titer determination with disodium tartrate dihydrate// Titer determination
FAQ
How to carry out the titer determination?// Titer determination
FAQ
Poor reproducibility of the titer determination with water// Titer determination
FAQ
Poor reproducibility of the titer determination with disodium tartrate dihydrate// Titer determination
Sample handling
FAQ
Overtitration took place, i.e., the titrated solution is dark yellow to brown instead of light yellow. How to prevent this?// Sample handling, Sample processing
FAQ
What to do if the drift is too high?// Sample handling, Sample processing// Conditioning the volumetric cell// Conditioning the coulometric cell
FAQ
What to do to improve the release of water?// Sample handling, Sample processing
FAQ
The titration does not finish. What could be the cause?// Sample handling, Sample processing
FAQ
Poor reproducibility of the results// Sample handling, Sample processing
FAQ
How often is the KF working medium to be changed?// Sample handling, Sample processing
FAQ
Why are the values found too low?// Sample handling, Sample processing
FAQ
The volumetric Karl Fischer titration is very slow// Sample handling, Sample processing
FAQ
How to prevent side reactions?// Sample handling, Sample processing
FAQ
Why are the values found too high?// Sample handling, Sample processing
FAQ
How much sample to weigh in?// Sample handling, Sample processing
FAQ
How to recognize a side reaction?// Sample handling, Sample processing
Reagents
FAQ
Where to buy KF reagents?// Reagents
FAQ
Which reagents are used for KF titration?// Reagents
Validation
FAQ
How to validate my KF titrator?// Validation
FAQ
How often should my KF titrator be validated?// Validation