46 Chemical Resistant Diaphragm Pumps
The C Series chemical resistant diaphragm pumps from Wiggens are an excellent solution for continuous, oil-free pumping of corrosive gases and vapours and meet demanding applications. The multi-stage construction provides an advantageous combination of high pumping speed and ultimate low vacuum. All major parts in contact with pumped media are made of PTFE which are ideal for extremely aggressive/corrosive gases and vapours. The sealing system provides reduced leakage rates for improved ultimate vacuum (1mbar).
Wiggens continues to extend the line of diaphragm pumps and apply new technologies to this series. More powerful motor drive multi-stage pump heads, which are an excellent choice for applications with corrosive gases and vapours with high vacuum requirements. Typical applications are pilot reactors, industrial rotary evaporators, semiconductor industry, drying ovens and many other laboratory applications. The maximus pumping speed can be up to 145L/min.
Thanks to the frequency conversion motor, the powerful pump could reach a high vacuum in a short time with good stability, which is ideal for larger laboratory applications.
Meanwhile, the frequency conversion vacuum pump can reduce the noise in the laboratory and extend the service life. Please contact Wiggens to learn more about vacuum in the experiment.
More information online:
ilmt.co/PL/vP1R 57812pr@reply-direct.com
Fast and Accurate Measurement of Mass Flow from Peristaltic Pumps
Testa Analytical Solutions eK reports how its real time flowmeter can be used to determine average flow rate as well as peak values of pulsation, thereby enabling selection of the most appropriate setting for any peristaltic pump application.
Carlo Dessy, Technical Director of Testa Analytical commented: “As simple and dependable as peristaltic pumps are, they do however come with drawbacks intrinsic to their design and principle of operation. The flow rate of a peristaltic pump cannot be determined just by the physical dimensions of the peristaltic wheel and tubing and its speed of rotation. Other factors including the viscosity of the transported liquid, flow pulsations, back pressure and aging of the pump tubing are known to have a significant influence on obtained flow rate.
“While simple applications like solvent transfer may not require a constant and known flow rate. More complex applications, such as reagent mixing for lab scale reactions and flow chemistries demand an accurate measure of flow rate to obtain reproducible and accurate experimental results. In independent testing by a major pharmaceutical company, our real-time flowmeter has been shown to be a valuable tool to improve global performance of systems equipped with peristaltic pumps by supplying fast and accurate values of flow rate and average flow rate. This data enables easy calculation of delivered quantities (mass flow) of reagent and the velocity of their introduction into the reactor. Also, the high sensitivity of our flowmeter has been shown to provide early detection of tube aging and loss of performance, therefore helping avoid unnecessary peristaltic pump failure, costly downtime, and loss of expensive reagents.”
Compact in size, and conveniently powered via a USB connection, the Testa Analytical real time liquid flowmeter uses a thermal flow sensor that is not only extremely accurate, sensitive, and high-resolution, but it also offers the advantage of being non-invasive. As the sensor does not interfere with the measurement it can operate over a wide dynamic range and has been demonstrated to be the perfect real-time liquid flow monitoring tool for a growing range of applications.
More information online:
ilmt.co/PL/9zpy 57652pr@reply-direct.com
Green Solution for Lab Water Conservation
California water officials recently had no alternative but to impose new drought rules throughout the state to discourage wasteful water practices. Whilst unaffected by the new regulations, scientists in the Department of Chemistry at the College of the Sequoias decided to evaluate an alternative waterless condenser from Asynt - the CondenSyn. The CondenSyn proved to be the perfect alternative to traditional water condensers previously used for reflux reactions.
This proactive investment in 22 CondenSyn waterless condensers has already drastically reduced water usage by the Department of Chemistry, and eliminated the risk of lab flooding accidents that are a potentially costly drawback of using water condensers and something that can be difficult to avoid.
Andrea Smith, a chemistry lab technician at the College of the Sequoias, commented: “Our area (the central valley of California) has been in drought- like conditions for quite a few years. Households and businesses are under severe water restrictions, having had to reduce water consumption yearly. While the college was not under the same restrictions, it only made sense that we should also strive to reduce our water usage/waste. It was laboratory supply company - Quark Glass - who suggested that the Asynt CondenSyn waterless condensers offered us an elegant eco-friendly but effective alternative to water-cooled condensers.
“We are currently using the CondenSyn waterless condensers for our teaching labs that require students to perform reflux reactions in water, methanol, or ethanol. This semester, we will use them in the preparation of methyl salicylate/oil of wintergreen (an esterification using salicylic acid and sulphuric acid refluxed in methanol), and the preparation of the analgesic benzocaine, another esterification using p-aminobenzoic acid and sulphuric acid in ethanol. Not only are the CondenSyn waterless condensers making the labs eco-friendlier, but they are also saving money as the department’s rate of water consumption has been reduced dramatically. For example, with every single overnight reflux run, a lab can save almost 3,000 litres of water - times that by twenty students and it is around a staggering 60,000 litres. Our students have found the CondenSyn units to be easy to use as there are no water connections to make, we can use them open to atmosphere, and the 19/22 ground glass joints are perfect for our commonly used round bottom flasks.”
More information online:
ilmt.co/PL/VOzE 57673pr@reply-direct.com
Cherry-picking and Reformatting Tubes from Acoustix Racks acoustic liquid dispensers.
Echo® Echo® acoustic dispenser.
A new adaptor kit enables the Ziath Mohawk tube selector to quickly and easily pick and reformat tubes from Azenta Life Sciences Acoustix racks used by the latest generation of Labcyte®
Acoustix is a small sample tube with a screw cap which has been widely adopted for storage of novel compounds in solution held in compound storage facilities. However, many automated tube selectors struggle to effectively handle Acoustix tubes because of their small size and that they are locked into racks that are suspended upside down in the Labcyte®
The Acoustix adaptor for Mohawk reduces the effective height of the Mohawk tube selector lid by introducing a clear acrylic plate at a lower height which easily prevents Acoustix tubes from exiting the inverted rack. This both simplifies and improves the speed of Acoustix tube picking on the Mohawk. In addition, as Acoustix tubes “lock” into their racks, Ziath developed a “release plate” that can quickly and easily unlock all ninety-six tubes in a rack, ready for picking. Using a new Acoustix software plug-in, in combination with the new adapter and release plate, fast and easy single tube cherry-picking and reformatting from Acoustix racks with automatic confirmation of pick list integrity is now possible. Only Ziath can do this.
Designed to enable picking of frozen or thawed sample tubes from 96-position racks, the Mohawk semi-automated has been designed to work out of the box and needs no set up or calibration. Instrument control is through the new user-friendly software which provides an intuitive interface for effortless operation. Tubes can be picked from a single rack, or a picklist can be set up to select tubes across multiple racks. Pick list operations are normally started from reading the 1D code on a rack placed onto the Mohawk, but manual selection is also possible.
View the video:
ilmt.co/PL/vP6m More information online:
ilmt.co/PL/4zpo
57656pr@reply-direct.com
INTERNATIONAL LABMATE - JULY 2022
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68
