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778 Sample Processor (1 pump)Sample Processor with one work station and one pump for the automatic processing of small to medium numbers of routine samples in combination with Titrinos or pH/ion meters. Compact system thanks to built-in pump for rinsing the titration vessel. A peristaltic or membrane pump can be connected to the Sample Processor for aspirating off the titrated solution (optional). Direct connection and control of stirrers and Dosinos via MSB. Control takes place via a Controller or the tiamo PC software.
2.778.0020
778 Sample Processor (2 pumps)Sample Processor with one workstation and 2 pumps for the automatic processing of small to medium numbers of routine samples in combination with Titrinos or pH/ion meters. Compact system thanks to built-in pump for rinsing the titration vessel. A peristaltic or membrane pump can be connected to the Sample Processor for aspirating off the titrated solution (optional). Direct connection and control of stirrers and Dosinos via MSB. Control takes place via a Controller or the tiamo PC software.
2.778.0030
778 Sample ProcessorSample Processor with one work station and two pump connections for the automatic processing of small to medium numbers of routine samples in combination with Titrinos or pH/ion meters. Compact system thanks to built-in pump for rinsing the titration vessel. A peristaltic or membrane pump can be connected to the Sample Processor for aspirating off the titrated solution (optional). Direct connection and control of stirrers and Dosinos via MSB. Control takes place via a Controller or the tiamo PC software.
2.786.0010
786 Swing Head with transfer head leftAdditional equipment for Robotic Sample Processors XL for transferring / pipetting from small sample vessels into larger titration vessels on the rack or into an external titration cell; this can be located to the left of the work station.
2.786.0020
786 Swing Head with transfer head rightAdditional equipment for Robotic Sample Processors XL for transferring / pipetting from small sample vessels into larger titration vessels on the rack or into an external titration cell; this can be located to the right of the work station.
2.786.0030
786 Swing Head with titration swing arm, left- or right-swingingAdditional equipment for Robotic Sample Processors XL for direct titration in sample vessels of 75 mL and more.
2.786.0040
786 Swing HeadAdditional equipment for Robotic Sample Processors XL without titration or transfer heads.
2.786.0240
786 Swing Head, right-swinging, reinforcedStrengthened Swing Head for usage with Sample Processors.
2.791.0010
791 IC VA DetectorD
2.791.0020
791 VA DetectorAmperometric Detector for Ion Chromatography.Electrochemical (amperometric) detection with the 791 VA Detector is a very sensitive detection method used successfully in both HPLC and ion chromatography. This method is also characterized by its very high selectivity: Only easily oxidizable or reducible substances are detected - chloride or sulfate are not detected and do not interfere with the electrochemical determination, even in high concentrations.The detector can be used in series or in parallel with other detectors that are frequently used in IC or HPLC (e.g. conductivity or UV/VIS detectors).Numerous electrodes suitable for each amperometric application are available.
- AB-190AB-190Determination of 4-carboxybenzaldehyde in terephthalic acid by polarography
4-Carboxybenzaldehyde, in the following referred to as 4-CBA, can be reduced directly at the dropping mercury electrode (DME) in an ammoniacal solution. After a very simple sample preparation it is now possible to determine the concentration of 4-CBA in terephthalic acid quickly and precisely by polarography down to the lower ppm range.
- AB-191AB-191Determination of cysteine and cystine simultaneously by polarography
After the degradation of biological samples (e.g. milk, wool, etc.), it is often important to know the cystine/cysteine ratio. This Application Bulletin describes the simultaneous, polarographic determination of the two amino acids. The determination is performed in perchloric acid solution at the DME. Samples with a high protein content require that the determination is performed in an alkaline solution.
- AB-192AB-192Determination of thiourea in the lower mg/L and in the µg/L range by polarography and cathodic stripping voltammetry
Thiourea forms highly insoluble compounds with mercury. The resulting anodic waves are used for the polarographic determination of thiourea. For the analysis of very small quantities (µg/L), cathodic stripping voltammetry (CSV) is used. Differential Pulse measuring mode is used in both cases.
- AB-195AB-195Titrimetric determination of free boric acid and tetrafluoroboric acid in nickel plating baths
This Bulletin describes the simultaneous potentiometric titration of free boric acid and free tetrafluoroboric acid in nickel plating baths. After addition of mannitol, the formed mannitol complexes are titrated with sodium hydroxide solution. The determination is carried out directly in the plating bath sample; nickel and other metal ions do not interfere.
- AB-196AB-196Determination of formaldehyde by polarography
Formaldehyde can be determined reductively at the DME. Depending on the sample composition it may be possible to determine the formaldehyde directly in the sample. If interferences occur then sample preparation may be necessary, e.g. absorption, extraction, or distillation.Two methods are described. In the first method formaldehyde is reduced directly in alkaline solution. Higher concentrations of alkaline or alkaline earth metals interfere. In such cases the second method can be applied. Formaldehyde is derivatized with hydrazine forming the hydrazone, which can be measured polarographically in acidic solution.
- AB-199AB-199Determination of sulfide and sulfite by polarography
Sulfide and sulfite can be determined polarographically without any problems. For sulfide, polarography is performed in an alkaline solution, for sulfite in a slightly acidic primary solution. The method is suitable for the analysis of pharmaceuticals (infusion solutions), wastewater/flue gas water, photographic solutions, etc.
- AB-200AB-200Acid value, hydroxyl value, and isocyanates in raw materials for the fabrication of plastics – Determination by automatic potentiometric titration according to various standards
Polyurethanes are one of the most commonly used types of plastic. They are produced by the reaction of raw polyols with isocyanates. Depending on the starting material a wide variety of plastics can be obtained. The determination of the acid value, hydroxyl value, and isocyanate content plays an important part in the analysis of raw materials for plastics.The acid number of polyol raw material is usually used in quality control to ensure batch-to-batch uniformity. Additionally it is used as correction factor for calculating the true hydroxyl number. In this Application Bulletin the determination of the acid number according to ASTM D4662 and ASTM D7253 is described.One raw material for polyurethanes are polyols. Polyols contain multiple hydroxyl groups. Therefore, hydroxyl number of a raw material directly correlates to the amount of polyols present and it is thus an important quality control parameter. In this Application Bulletin the determination of the hydroxyl number according to ASTM E1899 and DIN 53240-3 is described.As polyols react stoichiometrically with isocyanates, the knowledge of the isocyanate content is an important quality parameter for the production of polyurethanes. In this document the determination according to EN ISO 14896 method A, ASTM D5155 method A and ASTM D2572 is described.
- AB-204AB-204Oxidation stability of oils and fats – Rancimat method
This document outlines Rancimat testing for both liquid and solid food samples, including direct and PEG methods, for oxidation stability QC in the food industry.
- AB-205AB-205Thermostability of PVC and other chlorine-containing polymers
This Application Bulletin describes the determination of the thermostability of PVC in accordance with ISO 182 Part 3 using the dehydrochlorination method with the 895 Professional PVC Thermomat. The instrument permits fully automatic determination of the stability time. The test is suitable for monitoring the manufacture and processing of PVC products manufactured in the injection molding process, for their final clearance, characterization and for the comparison of PVC products and for testing the effectiveness of heat stabilizers.
- AB-206AB-206Titer determination in potentiometry
This Bulletin provides an overview of the potentiometric titer determination of current titrants. Many publications only describe methods with color indicators. However, the titration conditions chosen for the titer determination should resemble those used for the actual analysis as closely as possible. The tables contain suitable titrimetric standard substances and electrodes for selected titrants as well as additional information. Following this, an example is given to show what an SOP for a titer determination could look like.
6.6072.305
Pre-calibration for diesel analysisDetermination of cetane index und cetane number, as well as density, cold filter plugging point, flash point and sulfur in diesel fuel.
6.6072.306
Pre-calibration for gasoline analysisDetermination of octane number, LCI, benzene, aromatic compounds, olefins, oxygen and density in gasoline.
6.6072.307
Pre-calibration for kerosine analysisDetermination of cetane index, aromatic compounds, density, flash point, hydrogen, viscosity and other parameters in kerosine.
6.6072.308
Pre-calibration for polyethylene (PE)Pre-calibration for determination of intrinsic viscosity and density in polyethylene using NIR spectroscopy.
6.6072.309
Pre-calibration for polypropylene (PP)Pre-calibration for determination of the melt flow index in polypropylene using NIR spectroscopy.
6.6072.310
Pre-calibration for PETPre-calibration for determination of intrinsic viscosity, acid number, diethylene glycol content, and isophthalic acid content in poly(ethylene terephthalate) (PET) using NIR spectroscopy.
6.6072.311
Pre-calibration for polyamide (PA 6)Pre-calibration for determination of relative viscosity, carboxyl end-group content, and amine end-group content in polyamides (PA 6) using NIR spectroscopy.
6.6072.312
Pre-calibration for isocyanatePre-calibration for determination of the NCO number in isocyanate using NIR spectroscopy.
6.6072.313
Pre-calibration for cannabisPre-calibration for the determination of the THC, CBD, CBG and water content of mortared and dried cannabis flowers using NIR spectroscopy.
6.6072.314
Pre-calibration for human fecesPre-calibration for the determination of the dry mass of the fat content, the nitrogen content, the water content, and the calorie content using NIR spectroscopy
6.0255.120
Profitrode (length 31 cm)Combined pH electrode with double-junction construction, installation length 31.0 cm. This electrode is suitable for pH measurements/titrations of samples:that contaminate the reference system of the electrode (e.g., galvanic baths, samples containing sulfides); for which potassium chloride c(KCl) = 3 mol/L cannot be used as reference electrolyte (e.g., reaction of potassium or chloride with sample); The electrode is equipped with a flexible ground-joint diaphragm which is insensitive to contamination and which can be exchanged when needed.When c(KCl) = 3 mol/L is used as bridge electrolyte, storage in storage solution is recommended.The bridge electrolyte can be easily replaced with a suitable electrolyte (e.g., potassium nitrate c(KNO3) = 1 mol/L (6.2310.010)). Storage in the used bridge electrolyte.
6.0256.100
Flat membrane electrodeThis combined pH electrode is well suited for:pH measurements on surfaces, such as paper, textiles, leather; pH measurement/titration in small sample volumes (min. immersion depth = 1 mm); pH measurement/titration of aqueous suspension; Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.
6.0257.600
Aquatrode Plus with Pt1000Combined pH electrode with integrated Pt1000 temperature sensor for pH measurements/titrations in ion-deficient aqueous media (e.g., drinking water, process water). This electrode shows a very short response time in these samples. The fixed ground-joint diaphragm is insensitive to contamination. When c(KCl) = 3 mol/L is used as bridge electrolyte, storage in storage solution is recommended.The bridge electrolyte can be easily replaced with a chloride-free electrolyte (e.g., potassium nitrate c(KNO3) = 1 mol/L (6.2310.010)), storage in the used bridge electrolyte.
6.0258.010
Unitrode with Pt1000 (fixed cable 1.2 m, 2 mm)Combined pH electrode with integrated Pt1000 temperature sensor and fixed cable (1.2 m, diameter banana plug 2 mm). This electrode is particularly suitablefor pH measurements and titrations in difficult, viscous, or alkaline samples; at elevated temperatures; for long-term measurements; The fixed ground-joint diaphragm is insensitive to contamination.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.Alternatively: reference electrolyte for measurements at T>80°C: Idrolyte, storage in Idrolyte.
6.0258.600
Unitrode with Pt1000Combined pH electrode with integrated Pt1000 temperature sensor for pH measurements/titrations. This electrode is particularly suitable:for pH measurements and titrations in difficult, viscous, or alkaline samples; at elevated temperatures; for long-term measurements; The fixed ground-joint diaphragm is insensitive to contamination.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.Alternatively: reference electrolyte for measurements at T>80°C: Idrolyte, storage in Idrolyte.
6.0259.100
UnitrodeCombined pH electrode for pH titrations. This electrode is particularly suitable:for pH titrations in difficult, viscous, or alkaline samples; at elevated temperatures; The fixed ground-joint diaphragm is insensitive to contamination.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.Alternatively: reference electrolyte for measurements at T>80°C: Idrolyte, storage in Idrolyte.
6.0260.010
Unitrode easyClean mit Pt1000 (fixed cable 1.2 m)Combined pH electrode with easyClean diaphragm, integrated Pt1000 temperature sensor, and fixed cable (1.2 m). It is particularly suitable:for pH measurements and titrations in difficult, viscous, or alkaline samples; at elevated temperatures; for long-term measurements; The easyClean diaphragm can be easily cleaned even in the case of heavily contaminating samples.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.Alternatively: reference electrolyte for measurements at T>80 °C: Idrolyte, storage in Idrolyte.The Unitrode easyClean with Pt1000 is also available under the article number 6.0260.020 with a fixed cable length of 2.0 m.
6.0260.020
Unitrode easyClean with Pt1000 (fixed cable 2 m)Combined pH electrode with easyClean diaphragm, integrated Pt1000 temperature sensor, and fixed cable (2.0 m). This electrode is particularly suitable: for automated pH measurements and titrations in difficult, viscous, or alkaline samples; at elevated temperatures; for long-term measurements; The easyClean diaphragm can be easily cleaned even in the case of heavily contaminating samples.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.Alternatively: reference electrolyte for measurements at T>80°C: Idrolyte, storage in Idrolyte.
6.0262.100
Ecotrode PlusCombined pH electrode for aqueous acid/base titration. The fixed ground-joint diaphragm is insensitive to contamination. Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.
6.0269.100
EtOH-TrodeCombined pH electrode with double-junction system for pH measurements in nonaqueous media (e.g., for pHe in ethanol).The electrode is equipped with a fixed ground-joint diaphragm which is insensitive to contamination, and the bridge electrolyte can be freely chosen (aqueous or nonaqueous).When c(KCl) = 3 mol/L is used as bridge electrolyte, storage in storage solution is recommended. When a different bridge electrolyte is used, storage in the respectively used bridge electrolyte solution is recommended.The two chambers for reference electrolyte ("INNER FILLING") and bridge electrolyte ("OUTER FILLING") are each filled with c(KCl) = 3 mol/l at the time of delivery.
6.01503.150
OMNIS 5 mL cylinder unit without accessoriesIntelligent 5 mL cylinder unit for an OMNIS Titrator, Titration Module or Dosing Module. Without dosing tubing and antidiffusion tip.
6.01503.210
OMNIS 10 mL cylinder unit without accessoriesIntelligent 10 mL cylinder unit for an OMNIS Titrator, Titration Module or Dosing Module. Without dosing tubing and antidiffusion tip.
6.01503.220
OMNIS 20 mL cylinder unit without accessoriesIntelligent 20 mL cylinder unit for an OMNIS Titrator, Titration Module or Dosing Module. Without dosing tubing and antidiffusion tip.
6.01503.250
OMNIS 50 mL cylinder unit without accessoriesIntelligent 50 mL cylinder unit for an OMNIS Titrator, Titration Module or Dosing Module. Without dosing tubing and antidiffusion tip.
6.01508.210
Cylinder unit OMNIS special 10 mL, without accessoriesIntelligent cylinder unit 10 mL for one OMNIS Titrator, Titration Module or Dosing Module. This cylinder unit is especially recommended for the following solutions:• Aqueous alkali solutions• Titrant 5• Silver nitrate solutions• Nonaqueous alkali solutions• Permanganate solutions• EDTA solutionsWithout dosing tubing and antidiffusion tip.
6.01508.220
Cylinder unit OMNIS special 20 mL, without accessoriesIntelligent cylinder unit 20 mL for one OMNIS Titrator, Titration Module or Dosing Module. This cylinder unit is especially recommended for the following solutions:Aqueous alkaline solutions; Titrant 5; Silver nitrate solutions; Nonaqueous alkaline solutions; Permanganate solutions; EDTA solutions; Without dosing tubing and antidiffusion tip.
6.01543.000
M8 aspiration tipFor aspirating off reagent in connection with the OMNIS Solvent Module.
6.01543.100
Aspiration tip automationAspiration tip for automated OMNIS titrations.
6.01543.110
Tubing for aspiration tip automation, 3 piecesReplacement hose for 601543100 aspiration tip.
6.01543.120
Antidiffusion tipTitration tip with antidiffusion valve, suitable for OMNIS Karl Fischer titrator.