Kjeldahl Apparatus – A Must Have Instrument

The traditional Kjeldahl apparatus for digestion consists in 250-ml flask capacity. Macro Kjeldahl Apparatus started to appear for the volume from 400 – 800 ml, suggested for the samples that have very low amount of nitrogen & handle comparatively big sample size. Smaller version which appeared on the market was micro Kjeldahl, consisting of minor capacity flasks of 30 – 100 ml volume, generally used with the low sample amount.

Aluminum heating blocks are planned to accept numerous straight digestion tubes together. They generally accommodate from 6 p to 20, at the same time. In all cases, since Kjeldahl analysis involves the significant corrosive fumes, the suitable attention must be given for the purpose of fume removal.


Typically block digesters have single controller which adjusts the temperature of entire block and operating time, that automates & allows the timed ramping throughout the course of digestion. Several governmental & regulating organizations have developed devices that specify classical Kjeldahl apparatus. It is available freestanding, if suitably combined with fume removal system as stated above, or can be placed under the fume hood.

Kjeldahl apparatus for digestion followed by the steam distillation is sometimes denoted as “rapid Kjeldahl analysis” partly since a number of block digestion practices are smaller than the classical technique.

The typical Kjeldahl apparatus is designed to accept the straight digestion tubes straight from the block digesters. This way, the sample doesn’t need to be transferred. Steam distillation is much more quick than traditional Kjeldahl distillation, normally taking from 3 – 5 minutes. You can buy this useful apparatus online but be careful about the precision of product.

Melting Point Tester- Advanced Technology

The automatic melting point tester is a device that uses the latest technique in digital image processing, to correctly identify the melt of few samples simultaneously. It comes with a color VGA display. Melt can be watches on this in real time. It can capture the melt video for later use as well.


The melting point tester is a fully programmable device that is used via touch screen display.  Once you have set the plateau temperature, it can select the ramp rate increments. During use, a collection of preset methods can be developed to streamline the process input for repeat measurements. For the materials where the user is uninformed of an estimated melting point, & therefore unable in setting the plateau temperature, melting point tester can be used in quick melt mode. During quick melt mode a rapid scan of the total temperature range is commenced to provide an approx. melt temperature. A method, then, will be programmed automatically with the suitable plateau temperature to let a more precise measurement to be carried-out.

The melting point tester has an innovative design concept, it can be used as control or normal side & the melt side can be detached, allowing for the utmost in footprint flexibility. After loading the samples, the melt side of the device can be placed in a fume cupboard or at back of the bench to catch potentially dangerous fumes. Once melting point tester been split, its control panel side is available for making use in 2 orientations; either portrait or landscape to allow perfect viewing angle.