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Powerful and Durable Hot Plate/Stirrers with Integrated IR Heating Technology
Infrared rays (IR) are electromagnetic waves in the wavelength from 760nm to 1mm, between microwave and visible light. Anything above absolute zero (- 273.15ºC) can produce infrared rays. Modern physics refers to them as heat rays; the heat of the sun reaches the earth mainly through infrared rays.
The infrared absorption capacity is relatively weak, so the effect of direct heating is not ideal, however there are ways to meet heating requirements: as alloy has a smooth surface, a dense internal structure, low infrared absorption, infrared frequencies and most substances such as water, wood, plastic, fibre, paint, the vibrations of the molecules on the surface of the food correspond to those of the human body, and the molecules of such substances absorb infrared radiation, causing them to move violently in the form of rising temperatures. When the frequency of the infrared ray matches the vibration frequency of the irradiated molecule, the temperature increases remarkably. Therefore, infrared can be used for a wide range of heating applications.
Wiggens uses ceramic glass as the heating surface in a new generation of hot plate and hot plate/stirrers. Chemical resistance, a high surface quality and a resistance to temperature shocks of more than 700°C provide the user with maximum benefits compared to conventional heating surface materials. The poreless smooth surface enables even most stubborn dirt to be easily removed.
The high infrared permeability ensures that the heating energy is transferred quickly and with a low loss rate. It heats liquids faster than other heating surface materials, thus saving time and energy. Wiggens hot plate/stirrers integrates a variety of infrared heating technology to provide you with a reliable experience in your lab.
More information online:
ilmt.co/PL/gpam 54692pr@reply-direct.com
COVID-19 Rapid Antigen Test Receives CE Mark for Use on Children
Abbott has announced it now has a CE Mark for use of its Panbio™ COVID-19 Ag Rapid Test Device to detect the SARS-COV-2 virus in children age 15 years and younger. The CE Mark is based on the first-ever study focused on the performance of a rapid antigen test on children, including infants.
Abbott has received a CE Mark for the use of Panbio COVID-19 Ag with a nasal swab in asymptomatic and symptomatic individuals and for self-collection of samples under the supervision of trained professionals. The test with these performance data has also been added to the World Health Organisation’s Emergency Use Listing (WHO EUL).
Abbott has launched fourteen COVID-19 diagnostics tests across its portfolio of rapid and lab-based platforms in response to the pandemic. Since August 2020, Abbott has shipped more than 200 million Panbio rapid antigen tests to over 140 countries worldwide.
Interim results on samples collected by nasal swab from 274 children ages 15 and younger showed that Panbio COVID-19 Ag demonstrated overall sensitivity of 76.3% and specificity of 100% when compared with PCR test results.
Positive results (n=59) were stratified by cycle threshold (Ct) counts in order to understand the correlation between product performance and the amount of virus present in the clinical sample. Ct counts are the number of times a PCR instrument must cycle through to amplify enough genetic material of the SARS CoV-2 virus for it to be detectable. The greater the amount of virus present (viral load), the fewer cycles required to detect the virus. A person with a higher viral load (and lower Ct count) is more likely to be infectious.
Results for sensitivity were: 92.9% in 42 samples with Ct values less than or equal to 30; 82.7% in 52 samples with Ct values less than or equal to 33.
Specificity of the test across 215 negative samples was 100.0%, which means no false positives were identified.
More information online:
ilmt.co/PL/mJqw 55256pr@reply-direct.com
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