Market Address Contact details Availability Hong Kong DKSH Hong Kong Ltd. 23rd Floor, Tower A, Southmark 11 Yip Hing Street Wong Chuk Hang Hong Kong DKSH Hong Kong Ltd. +852 2963 6896 Monday to Friday, 8:30am-12:30pm, 2:00pm-5:30pm (HKT). We would like to show you a description here but the site won’t allow us. The Kruss family name was found in the USA, and the UK between 1840 and 1920. The most Kruss families were found in the USA in 1920. In 1840 there was 1 Kruss family living in Ohio. This was 100% of all the recorded Kruss's in the USA. Ohio had the highest population of Kruss families in 1840. A.KRUESS contact form. Sales and Service Partner – Worldwide Sales and Service Partner Network. Regular maintenance increases the life of your. Educational Tensiometer K6 The Simple Manual Measuring System A basic tensiometer for rapid determination of interfacial tension and the surface tension of liquids.
Abstract.
Twenty-three halotolerant and biosurfactant producing strains were collected from salty conditions in central Thailand. One of the strains designated BBK-1 produced the biosurfactants with the highest activity. BBK-1 was isolated from fermented foods and was identified as B. subtilis based on its physiological characteristics and 16S rRNA gene sequence. We show that the strain grows in media containing NaCl up to 16% (w/v) and produces biosurfactants in NaCl up to 8%. We found that B. subtilis BBK-1 produces three kinds of surface-active lipopeptides simultaneously. By their respective molecular weights and amino acid compositions, it is indicated that these lipopeptides are bacillomycin L, plipastatin, and surfactin. In order to analyze the production mechanism of lipopeptides further in the strain, a generally important biosynthetic gene encoding 4′-phosphopantetheinyl transferase was cloned and sequenced. The gene existed in a single copy in the genome and the deduced amino acid sequence was almost identical to that of Lpa-14 from B. subtilis strain RB14, which co-produces iturin A and surfactin.
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The manual tensiometer for clear and reliable basic measurements
Our Force Tensiometer – K6 is a robust and reliable manual instrument for measuring surface tension and interfacial tension using the ring method. As a quality product from our precision mechanical workshop, it produces fast, easy and accurate measurements for surfactant solutions and solvents.
Kruss K6
The heart of the instrument is a torsion wire which is connected to a measuring ring. To make the measurement, the ring is immersed in the sample and slowly withdrawn by lowering the liquid. As the ring is withdrawn, the surface tension causes the wire to twist and its defection is indicated on a scale which is calibrated for the surface tension. The result of the measurement is indicated accurately to 0.5 mN/m.
Kruss Force Tensiometer K6
The horizontal alignment of the instrument, which is necessary to achieve precision measurements, is provided by a special platform with leveling facility. Our K6 has a large measuring range of 1 to 90 mN/m. It therefore measures high surface tensions, such as that of water, and low surface tensions, such as that of hexane and other solvents, equally reliably.
Kruss K6 Manual
As well as simple investigations of liquid and liquid-liquid interfaces, our K6 is also suitable for training purposes in schools and universities for demonstrating the action of the surface tension force in a comprehensible manner.