CAD Instruments - ZetaCompact , zêtamètre par micro-électrophorèse
CAD Instruments – ZetaCompact , zêtamètre par micro-électrophorèse
  Le ZetaCompact est un zêtamètre basé sur la technique de micro-électrophorèse, c'est-à-dire, un couplage entre observation directe (microscopie) et déplacement de particules en suspension sous champ électrique (électrophorèse). L'illumination de la zone de mesure s'effectue à l'aide d'une feuille laser (ou Single Plane Illumination Microscopy) créée par une combinaison de lentilles associées à un laser. Cette technique permet l'observation des particules dans un plan vertical. [media-downloader media_id="4127" texts="Pour plus de détails, cliquez ici"]
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CAD Instruments - ZetaPhoremeter IV
CAD Instruments – ZetaPhoremeter IV

Zêtamètrie laser par analyse d’images

Le ZetaPhoremeter IV est un zêtamètre basé sur la technique de micro-électrophorèse, c'est-à-dire, un couplage entre observation directe (microscopie) et déplacement de particules en suspension sous champ électrique (électrophorèse). L'illumination de la zone de mesure s'effectue à l'aide d'une feuille laser (ou Single Plane Illumination Microscopy) créée par une combinaison de lentilles associées à un laser. Cette technique permet l'observation des particules dans un plan horizontal.
La determination du Potentiel Zêta n'est pertinente que si la mobilité électrophorétique est mesurée dans le plan stationnaire dont la position est connue et contrôlée précisément. Le suivi du déplacement des particules grâce à une caméra numérique est enregistré sous forme de séquence d'images. ZetaCompact Principle La distribution des mobilités électrophorétiques est alors mesurée à l'aide d'un algorithme récemment implémenté pour détecter et suivre jusqu'à 5 000 trajectoires/séquence. Basé sur le principe de la corrélation d'images, cet algorithme offre une meilleure détermination du Potentiel Zêta, dans des milieux dilués ou semi-dilués. La seule différence avec le zêtamètre ZetaCompact réside dans le mode d'observation. Le ZetaPhoremeter IV comprend un microscope droit Nikon pour permettre l'éclairage et l'acquisition des séquences d'images. Il peut également être adapté à d'autres modèles de microscopes.

Applications

Les nombreuses applications d'utilisation du ZetaPhoremeter concernent principalement les domaines suivants :
  • Suspensions
  • Emulsions
  • Bactéries
  • Protéines
  • Nanoparticules
[media-downloader media_id="4143" texts="Pour plus de détails, cliquez ici"]
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IKA C 200
IKA C 200 h auto
The C 200 h auto package allows operating the C 200 with a completely automated water cycle. This results in ease of handling and saves valuable time especially for laboratories with a low number of analyses. The water circulates in a closed loop and is kept at a constant temperature by using a recirculating chiller. This leads to shorter preparation time for each experiment and even better reproducible results. The scope of delivery includes: C 200 calorimeter measuring cell C 5012 halogen resistant, catalytic activated decomposition vessel C 200.2 conversion kit for C 5012 C 248 oxygen filling station RC 2 basic circulating chiller C 200.RC hose set Consumables for calibration and installation The semi-automated and conforming-to-standards combustion calorimeter determines the gross calorific value of liquid and solid samples. So far it has mainly been used for teaching and training purposes at technical schools and universities. Due to the automated water handling it is now also suitable for industrial laboratories with low number of analyses. The catalytic activated, halogen resistant decomposition vessel C 5012 is specifically designed for the combustion of samples that contain halogens and sulfur ( > 3 % ). The material of the decomposition vessel (Hastelloy) prevents corrosion caused by samples with high chlorine content. The catalytic activated inner-surface leads to higher recovery rates in case analysis of halogens and/or sulfur is required after the combustion. Four different operation modes enable the user to control the measuring times according to individual requirements: Isoperibol: approx: 17 min. Dynamic: approx. 8 min Manual: approx. 17 min (depends on the operator) Time controlled: 14 min Measurements are possible according to e.g. DIN 51900, ISO 1928, ASTM D240, ASTM D4809, ASTM D5865, ASTM D1989, ASTM D5468, ASTM E711. The software C 6040 CalWin controls the unit and monitors the measurement of the samples. Additionally, collected data can be exported to e.g. Excel, Word, SQL and LIMS for further analysis. It is possible to operate several calorimeters with one PC. A PC is not part of the scope of delivery and needs to be provided by the operator. CalWin is sold separately. [media-downloader media_id="4215" texts="Pour plus de détails, cliquez ici"]
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IKA C 200
IKA C200
Nouveau petit calorimètre à combustion à faible coût permettant de déterminer les valeurs calorifiques des échantillons liquides et solides. Prédestiné aux objectifs d‘apprentissage, en particulier pour les écoles, les instituts technologiques, les universités, les stages, etc. Egalement adapté aux laboratoires ayant un nombre d‘analyses réduit. - Manipulation manuelle de l’hydrogène et de l’oxygène - Quatre modes de fonctionement - isopéribolique, manuel, dynamique, piloté dans le temps - permettent une daptation idéale à différentes tâches - Écran clair, pratique et simple d‘utilisation - En mode manuel (mode d‘apprentissage), l‘allumage et la fin de la mesure sont déclenchés par l‘utilisateur. L‘évolution de la température s‘affiche toutes les minutes, ce qui permet de la noter. Tous les calculs sont à exécuter manuellement. - Dans les autres procédures d‘essai, les allumages et les calculs de la valeur de combustion ont lieu automatiquement. La valeur de combustion s‘affiche. Les corrections d‘acide pour la valeur de combustion et le calcul de la valeur de chauffage sont à effectuer manuellement. - La cuve de décomposition C 5010 peut être rééquipée avec un creuset jetable C 14 NEW! - Le C 200 fonctionne aussi avec le logiciel de calorimètre „CalWin C 5040“. Il est possible de commander jusqu‘à huit cellules de mesure C 200 via un PC. Le détail des fonctions : - Mode opératoire: isopéribolique, manuel, dynamique, piloté dans le temps - Validation de l’appareil conforme aux normes DIN 51900, ISO 1928, ASTM D240, ASTM D4809, ASTM D5865, ASTM D1989, ASTM D5468, ASTM E711 - Certifié GOST - Allumage automatique de l’échantillon - Conception modulaire compacte - Convivialité exemplaire - Avec une alimentation externe universelle de 100 – 240 V - Tension du calorimètre: 24 V DC Comportant : C 200 Appareil de base comprenant un bloc d’alimentation intégré et un adaptateur d’allumage, C 5010 Bombe calorimétrique standard, C 248 Station de remplissage en oxygène   [media-downloader media_id="4184" texts="Cliquez ici pour télécharger plus de détails"]
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Linseis - TGA PT1000
Linseis ATG PT 1000
Le nouveau TGA PT 1000 de Linseis est utilisé pour les applications thermogravimétriques. Il est composé d’une thermo-balance numérique chargé par le haut, ce qui offre un design très convivial. La thermo-balance permet de tester des échantillons avec un poids d’échantillon de 5 g allant de la température ambiante jusqu’à 1100°C. Les fours spécialement conçus permettent un chauffage rapide et des vitesses de refroidissement allant de 0.001 à 250°C/min, ainsi qu’une régulation de température très précise. Le système peut être équipé en option d’un dispositif de couplage pour l’analyse des gaz émis (EGA evolved gas analysis). Le système est idéal pour l’analyse thermique de la composition, la stabilité thermique, et des essais d’oxydation. Le calcul du signal ATD (option), fournit des informations supplémentaires concernant les réactions endothermiques et exothermiques. En outre, il peut être utilisé comme un outil de calibrage de la température. Nouveau système automatique de Linseis: Un passeur d’échantillons avec 42 positions en combinaison avec un contrôle automatique de gaz et un système d’évacuation automatique (options) permettent un fonctionnement sans surveillance. Pour disposer d’un débit d’échantillon encore plus élevé, nous pouvons vous proposer un passeur d’échantillon avec 84 positions.
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Linseis Conductivité LFA 1000 Laser Flash
Linseis LFA 1000 Laser Flash
L'information que l’on peut obtenir des propriétés thermo-physiques des matériaux et l’optimisation de transfert de chaleur des produits finis est de plus en plus important pour les applications industrielles. Au cours des dernières décennies, la méthode flash a été développée. C’est la technique la plus couramment utilisée pour la mesure de la diffusivité thermique et la conductivité thermique de différents types de matières solides, de poudres et de liquides.
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Microtrac Nanotrac Flex
Microtrac Nanotrac Flex
The Nanotrac Flex in-situ particle size analyser delivers fast and accurate analysis capability. Powered by Microtrac’s enhanced Dynamic Light Scattering technology, the Nanotrac Flex is ideal for measuring particles across wide concentration ranges using minimal sample volume. Named appropriately, the external probe provides users with the flexibility to measure sub nanometer to several micron particle suspensions in-situ (in process) or on a lab bench. What sets the Nanotrac Flex apart from other DLS systems is the unique probe technology, which turns any vessel into a sample cell. The probe also utilises an enhanced optical signal, which yields fast, accurate, and sensitive particle size measurements of materials ranging from ppm to near finished product. The Nanotrac Flex is designed for in-situ measurements of colloidal systems. It is based on 180° heterodyne dynamic light scattering and can measure up to 40% w/v material concentration. With this setup, a part of the laser beam is added to the scattered light. This works like an optical enhancement of the scattered light. Particle sizes range from 0.8 to 6,500 nm. In addition to particle size one can also measure the molecular weight according to Debye. The needed dn/dc value needed will be measured automatically and doesn’t need to be added from a table. A mixture of 100 and 250 nm Polystyrol Latex will be detected as separate peaks. Despite its multiple capabilities, it doesn’t lack in accuracy and safety. The extensive analysis data highly exceeds the requirements of ISO 22412 and meets safety requirements according to CFR21 Part 11. The fibre measurement method is used in the Nanotrac Flex to use the fiber end as a dip-in probe. Advantages of this method are that no cuvettes are needed, the direct measurement in the product and the inline option. The results are ready after a measurement time of 10 to 100 seconds. The parameters like refractive index and absorption of the particles, as well as the viscosity of the surrounding liquid, are needed for the accuracy, and are available in a database. With the proprietary Mie calculation, the user is able to measure transparent or light absorbing samples, as well as spherical and irregular particles. The probe, which is the catalyst for Reference Beating, Microtrac’s enhancement to traditional DLS, increases the optical signal back to the detector anywhere from 100 to 1,000,000 times more than systems who use “self-beating.” The enhanced signal produces superior analysis results when measuring single modes or multi-modes across the widest concentration range. Applications for the Nanotrac Flex:
  • Pharmaceuticals/Biotechnology
  • Chemicals
  • Food/Beverage
  • Plastics/Polymers
  • Coatings/Coverings
  • Inks
  • Adhesives
  • Academic Research
Nanotrac Flex In-situ Particle Size Analyser Details:
  • Turn any vessel into a sample cell – the external probe allows you to dip and measure
  • Small sample volume required
  • Amplified optical signal for unparalleled accuracy and sensitivity, compliments of Reference Beating – only from Microtrac
  • Measures particles ranging in size from 0.8 to 6,500 nanometres
  • No advanced, or “A priori” knowledge of the particle size distribution is required
  • Ability to measure size and concentration simultaneously.
  • Molecular weight determination
  • Numerous probe lengths available
  • Universal solvent compatibility
[media-downloader media_id="4465" texts="Click here for details"]
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Microtrac Nanotrac Wave II
Microtrac Nanotrac Wave II

Accurate particle size zeta potential analyser ideal for characterising nanoparticles.

Featuring an enhancement to traditional DLS, the Nanotrac Wave II employs Reference Beating, which amplifies the signal back to the photodector, producing unparalleled accuracy for measuring particle size, zeta potential, molecular weight, and concentration of colloidal systems. The Nanotrac Wave II provides users with superior particle analysis capability by taking advantage of an enhanced optical signal, innovative probe technology, and advanced algorithms. Whether your material is in ppm concentration or near a finished product, the Wave II obtains fast, sensitive, and precise measurements of materials ranging from sub-nanometres to several micrometres. Reference Beating increases the optical signal between 100 to 1,000,000 times compared to traditional DLS. The increased optical signal enables users to accurately measure single and multi-mode distributions across the widest concentration range in the market. Dubbed appropriately, the Microtrac Way, check out this short presentation to learn more about our proprietary technology. Applications for the Nanotrac Wave II:
  • Pharmaceuticals/Biotechnology
  • Chemicals
  • Food/Beverage
  • Plastics/Polymers
  • Coatings/Coverings
  • Inks
  • Adhesives
  • Academic Research
Nanotrac Wave II instrument details:
  • Enhanced optical signal for superior accuracy compliments of Reference Beating – available only from Microtrac
  • Unique probe design, fixed optics, and 180° backscatter collection enables fast and precise measurement across the widest concentration range – from ppm to near solids (40% w/v)
  • Measures particles ranging in size from 0.8 to 6,500 nanometres
  • No “a priori” or advance knowledge of the particle size distribution is required
  • Able to measure Zeta Potential closer to iso-electric point by eliminating errors caused by electro-osmotic flow. ZP measurement ranges from -200 to +200mV
  • User selectable data presentation modes
  • ISO 22412 and CFR21 Part 11 compliant
  • Distribution – standard volume particle size distribution
  • Legacy – ensure data consistency when transitioning from “legacy” instrument
  • Mode – simultaneously measure size and concentration.
  • Removable sample cell – available in Teflon or stainless steel
  • 150 µl sample volume required – ideal for expensive materials
  • Peltier temperature control device
  • Multiple flow cell options – ability to connect a titrator.
15nm and 120nm bi-mode ? No problem for the Nanotrac Wave II.

[media-downloader media_id="4457" texts="Download the datasheet of the Nanotrac Wave II"]

[media-downloader media_id="4472" texts="Download Microtrac DLS product family brochure"]

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Microtrac Nanotrac Wave II Q
Microtrac Nanotrac Wave II Q
Nanoparticle size analyser accurately measures colloidal systems across wide concentration range. The Nanotrac Wave II Q combines the best of both worlds for nanoparticle size analysis; Microtrac’s proprietary probe technology, adapted for a cuvette interface, facilitating fast measurements and the ability to dispose of the sample cell after use. Using Reference Beating, an enhancement to traditional DLS, the Nanotrac Wave II Q delivers an amplified optical signal back to the photodetector, resulting in superior measurement accuracy for measuring size and molecular weight of nanoparticle suspensions. Providing unparalleled characterization results, the Nanotrac Wave II takes full advantage of the amplified optical signal, probe technology fixed at the cuvette interface, and advanced algorithms. From ppm to near finished product, the Nanotrac Wave II Q determines fast, repeatable, and sensitive measurements of particles ranging from sub-nanometer to several micrometer. Even with a cuvette, Reference Beating increases the optical signal between 100 to 1,000,000 times compared to traditional DLS. Users can accurately measure single and multi-modal distributions across a broad concentration range. Check out this short presentation that explains our proprietary technology, appropriately titled, the Microtrac Way. Applications for the Nanotrac Wave II Q:
  • Pharmaceuticals/Biotechnology
  • Chemicals
  • Food/Beverage
  • Plastics/Polymers
  • Coatings/Coverings
  • Inks
  • Adhesives
  • Academic Research
Nanotrac Wave II Q Analyser Details:
  • Measures particle size from 0.8 to 6,500 nanometres
  • No blank measurement or prior knowledge of the size distribution required – simply load cuvette and measure
  • Compatible with 4 cuvette volumes:
    • Macro volume – 1000 μl
    • Glass – 1000 μl
    • Semi-micro volume – 300 μl
    • Micro volume – 50 μl
  • Simultaneously measure size and concentration.
  • Widest concentration range on the market from ppm to 40% w/v
  • Cuvette error detection alerts
  • Peltier temperature control device
  • ISO 22412 and CFR21 Part 11 compliant
Having a hard time seeing those 30 nm particles mixed in with larger particles? The Nanotrac Wave II Q can clearly resolve both the 100 nm and 30 nm particles. Nice clean peaks.

[media-downloader media_id="4473" texts="Download the datasheet of the Nanotrac Wave II Q"]

[media-downloader media_id="4472" texts="Download Microtrac DLS product family brochure"]

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Partical Metrix - ZETA-check
Partical Metrix – ZETA-check
Particle interface potentials like the oscillating zeta streaming potential measured in the ZETA-check, represent the level of electrostatic repulsion between particles. The potential is generated by ionic end groups on particles and macro-molecules, respectively. With ZETA-check, the state of the actual charge of dispersions and macromolecular solutions is obtained within seconds. Solutions and dispersions from 0.3 nm up to 100 µm particle size qualify for measurement. The typical concentration is between 0.01 and 40 vol%. [media-downloader media_id="1166" texts="Click here for details"]
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Partical Metrix – ZetaView
First principal electrophoresis zeta potential and Brownian diffusion size With ZetaView® individual particle tracking, classical micro-electrophoresis and Brownian motion have a modern analysis tool. Auto-alignment and auto-focussing make the “Seeing is Believing” principle alive. Highly resolved zeta potential- and size- histograms as well as profiles are derived from thousands of particles in a routine way. In addition, low particle concentrations can be determined. A separate model with a short wavelength laser is available for discrimination of fluorescent particles. The visualisation in general contributes to analysis certainty and to new discoveries. [media-downloader media_id="1167" texts="Click here for details"]
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Particle Metrix Stabino zetameter
Particle Metrix Stabino zetameter
Rapid charge titrations for stability analysis of colloids and dispersions enhance the efficiency of formulation and particle interface analysis. The Particle Interface Potential of particles is measured as streaming / zeta potential and represents the degree of electrostatic repulsion between particles. It reacts to pH, conductivity and polyelectrolyte surrounding, respectively. A charge titration with the Stabino® specifies which parameters require special attention. The isoelectric point can be titrated within short time, gathering information on charge density and stable zones, whilst pH, conductivity and temperature are monitored simultaneously. Particle Charge Mapping The intuitive tablet PC controlled automatic titration of the Stabino® opens the way to particle charge finger-printing of colloids and dispersions. The isoelectric point is reached quickly, gathering information on charge density and stable zones, whilst pH, conductivity and temperature are measured simultaneously. [media-downloader media_id="1168" texts="Click here for details"]  
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