Refine by
Burette Articles & Analysis
15 articles found
But there is also kitchen glassware, bowls, measuring cups, dishes … and laboratory glassware: flasks, test tubes, test tubes, pipettes, burettes … There are decorative glassware (vases, figures, ornaments, lamps, stained glass) and specialized glassware: optical instruments, technical containers, industrial parts, flat glass objects (windows, moons or pictures).Ceramics, ...
Have you ever wondered why your titration results are not reproducible? This blog post discusses the most common random and systematic errors that can happen during a titration. It should serve as a guide to help identify and minimize the sources of these errors in titration ...
ByB&W Tek
Liquid handling is one of the most important (yet tedious) tasks in the analytical laboratory. However, analytical results are only accurate and reproducible when using the correct volume of sample, solvent, reagent, titrant, or auxiliary solution. With each manually prepared sample or solution, the risk for falsified results rises. This blog article discusses the many advantages of automating ...
ByB&W Tek
You may have questioned whether to use volumetric or coulometric titration to analyze a sample. This blog article explains the most important factors to consider in order to choose the optimal Karl Fischer titration technique. To begin, the main difference between volumetry and coulometry is discussed: the «addition» of the ...
ByB&W Tek
Analyzing different types of water samples on a regular basis presents several challenges for analysts. Depending on the type of lab (e.g., municipal or water bottling facilities), the number of samples to be analyzed can vary significantly. Every day such laboratories receive hundreds of samples that must go through pH, conductivity, and alkalinity testing, among others. If additional tests ...
Dispensers: Used for storing or dispensing substances, dispensers include burettes and bottle-top dispensers. Flasks: Flasks can be used for measuring, mixing, collecting, or holding chemicals. ...
The second part of this blog series focuses on the different ways of carrying out a potentiometric ion measurement with an ion-selective electrode (ISE). The two most common ways are standard addition and direct measurement. In the past, you may have doubted which of these two determination methods was most suitable for a sample. To make it easier for you to answer this question, I will ...
Nonaqueous acid-base titrations are widely used in several industries, including the petrochemical and pharmaceutical sectors. Whether you are determining the acid or base number (AN or BN) in oils or fats, titrating substances that are insoluble in water, or quantifying products with different strengths of acidity or alkalinity separately, nonaqueous acid-base titration is the method of ...
ByB&W Tek
Like many of you, I gained my first practical titration experience during my chemistry studies in school. At this time, I learned how to perform a manual visual endpoint titration – and I can still remember exactly how I felt about it. Using a manual buret filled with titrant, I added each drop individually to an Erlenmeyer flask that contained the sample solution (including the analyte to ...
ByB&W Tek
If one is looking for something mundane glassware, such as graduated cylinders, pipettes, burettes, volumetric flasks, beakers and Erlenmeyer flasks Questron can be competitive with most sources for class A glassware. ...
A huge range of tests in the laboratory require the use of volumetric glassware such as bulb or volumetric pipettes, volumetric flasks, graduated cylinders and burettes, to accurately measure larger volumes of liquid. As this volume measurement is a critical part of the overall test the glassware should be considered for regular monitoring. ...
Titrant solution is volumetrically delivered to the reaction flask using a calibrated burette. Delivery of the titrant is called a titration. The titration is complete when sufficient titrant has been added to react with all the analyte. ...
Previously, analysts stood by the experiment table, one hand operating the glass titration burette, the other shaking the conical bottle in which chemical reactions were constantly happening, observing solution color change. ...
Volumetric deformations of triaxial specimens of sand measured with a burette are burdened with an error caused by a rubber membrane penetrating into the peripheral voids of the specimen. ...
Desirable requirements for volume capacity and precision of volume change devices for triaxial testing are studied, and operational requirements for devices suitable for automatic datalogging are reviewed. Two devices that fulfill these requirements have been constructed by the writer by combining existing design principles. One device consists of a buret system with differential pressure ...