32 Contactless and Precise Roughness Measurement from Any Location
Whether a surface must be very smooth or show a certain texture or degree of roughness, the new Surface Roughness Analyzer - SRA precisely pictures the topographic condition of a surface and provides information for optimising the material or production process. Contactless, quickly, and with an extremely high resolution, the SRA delivers a 3D image of a sample‘s surface and the correlating data which exactly describe its topography. Analyses with the SRA also help to evaluate the contribution of roughness to the wettability of a sample or to the adhesion of coatings.
The SRA uses the confocal microscopy technique to create the spatial representation of the surface. This happens by stacking layers of 2D images, each one with a very small depth of focus, while lowering the optics with extremely tiny increments, leading to a height resolution of down to 10 nanometers.
To scan an area of the sample, usual confocal microscopes use a rotating pinhole disk to create an image at each height level. The disk inside the SRA has micro lenses instead of just holes, increasing the light yield and making it possible to analyse low-reflectivity or even transparent surfaces.
The vertical transport of the measuring head uses an ultrasonic instead of a common piezo drive. Thus, while combining speed with a high resolution, the usual height range of the measurement is widely exceeded. To reach a vast scope of tasks from roughness analysis to imaging the exact shape of whole products such as screws or tooth implants, lenses with magnifications from 2.5 to 100-fold can be exchanged quickly and easily.
With its small size and low weight, the SRA can be used at almost any place as a lab instrument, but is also available as a measuring head to be used for automatic processes in the production line. This makes real-time sample evaluations for QC checks of work pieces possible. Adding to the versatility of the SRA itself, the software can be linked to programs such as Matlab®
in order to integrate it in information systems.
The Surface Roughness Analyzer - SRA is immediately available. Krüss will also present the instrument together with other solutions in the area of non-destructive surface analysis on Hall 6, Stand 6419, at the Control trade fair from 7-10 May in Stuttgart.
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Precise Carbon/Sulphur Analysis with Flexible Measuring Range
The new ELEMENTRAC CS-i from Eltra was developed for accurate and reliable analysis of carbon and sulphur in inorganic materials such as steel, cast iron, copper, ore, cement, ceramics, or glass.
It uses an induction furnace for sample combustion as well as highly sensitive IR cells to determine C/S concentrations. The measuring range may be adapted to the user’s specific requirements.
The robust ELEMENTRAC CS-i offers some new performance features which make the analysis process even more easy and convenient: freely selectable configuration of each IR cell; new vacuum system ensures higher measurement precision and stability; heated dust trap allows for improved sulphur detection; optimised catalyst reactor permits more accurate carbon detection; new ELEMENTS software with comprehensive diagnosis and analysis tools.
The ELEMENTRAC CS-i may be equipped with IR cells of different sensitivity for carbon and sulphur, according to the customer’s requirements. Unlike analysers of other manufacturers, the CS-i is not only available in standard configuration with two IR cells for carbon and sulphur respectively, but also in individual configurations with single IR cells. Defined measuring ranges (for example, high carbon content in cast iron, low sulphur content in steel) may be freely combined thus allowing for economic configuration of the ELEMENTRAC CS-i.
45493pr@reply-direct.com Semi-Automated Tube Picker Launched
Ziath showcased its new Mohawk Semi-Automated Tube at SLAS 2019. This innovative new system sets a new standard for frozen or thawed sample tube picking from 96-position racks. The Mohawk 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 easy 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.
Other key features of the new semi-automated tube picker include the ability to generate picklists externally in other software applications, or create a template using the Mohawk’s own software. For extra sample tracking and security, the Mohawk can be connected directly to a 2D-barcode scanner for tube confirmation. In this mode it can also generate picklists directly from the tube barcodes. For further traceability, a 1D-scanner for reading the rack barcode is included as standard.
The compact size, intuitive software and ability to integrate make the Mohawk a valuable asset in sample management applications with thawed or frozen tubes in SLAS standard format racks.
More information online:
ilmt.co/PL/0W1Q 48348pr@reply-direct.com High-End Titration System Increases Productivity and Efficiency in the Modern Laboratory
OMNIS is the high-end titration system from Metrohm. It provides users with the possibility to consolidate their wet chemical analysis on a universal platform. With this comes the flexibility to expand and customise this platform as their business grows. Automation possibilities hitherto simply not available help taking productivity to the next level.
OMNIS gives laboratories the flexibility to respond to new challenges as they arise. Hence, the platform can be expanded at any time to provide additional capacity for new applications and/or higher sample throughput. This is done by adding the required hardware, e.g. another titration module, another work station, or even a robotic autosampler to the existing platform.
OMNIS boosts efficiency with the possibility to perform several tasks in parallel. Here is an example: While a titration is performed in a sample on one workstation of the OMNIS Sample Robot, the next sample is already being prepared on another workstation. A third and fourth workstation may be used to further integrate the same application or to perform different ones - simultaneously.
The modularity of OMNIS includes the possibility to increase sample throughput by automation. Hence, throughput can be pushed in increments from 50 to 125 to 175 samples based on the x-y-z system of the OMNIS Sample Robot. Peak performance is defined by four titrations performed simultaneously at four workstations to analyse 175 samples completely unattended.
Basically, OMNIS provides a construction kit of discrete functional steps, which can be freely combined and used over and over again. Thus, customised operating procedures can be built block by block with the least possible effort.
Users want to know the concentration of parameters x, y, and z in their samples. In reality, this all too often means collecting results from different determinations or method specific data bases and aggregating them with considerable effort. Not so with OMNIS: All results are connected to the sample in the sample profile and shown to the user at a single glance.
Measuring a particular sample may require several different methods to be performed in a specific order. If whole series of samples have to be analysed, maintaining an overview becomes a challenge. Not so with OMNIS: Users can open the sample profile at any time to see, which samples (and parameters) have already been analysed and which are next.
More information online:
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INTERNATIONAL LABMATE - APRIL 2019
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