Category

Electrochemmatters

Determination of the MacMullin number

A valuable way to compare battery separators is to monitor the difference between the resistivity of the separator soaked in the electrolyte and the resistivity of the free electrolyte. The ratio of these two values is the MacMullin number. This Application Note shows how to perform the necessary measurements and...
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In situ SERS effect with screen-printed silver electrodes

In this work, time resolved Raman spectroelectrochemistry measurements with screen printed electrodes are shown.  The instrument used combines in a totally integrated box: a 785 nm laser source, a high resolution Raman spectrometer and a bipotentiostat/galvanostat. Experiments are controlled with an excellent spectroelectrochemical software which allows real time data collection...
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Metrohm Autolab DuoCoin Cell Holder with EIS measurements on a commercial battery

Metrohm Autolab DuoCoin Cell Holder with EIS measurements on a commercial battery

The Metrohm Autolab DuoCoin Cell Holder has been developed to perform electrochemical experiments on coin cell batteries. EIS measurements on a commercial coin cell battery are performed. Differences in impedance between the four-terminal configuration and two-terminal configuration is highlighted, putting in evidence the importance of having a direct four-terminal configuration, when...
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Simple CV and EIS test measurements carried out with electrochemical cells for air or moisture sensitive measurements

Simple CV and EIS test measurements carried out with electrochemical cells for air or moisture sensitive measurements

The TSC SW and TSC battery cells are compact systems designed for measurement of air or moisture sensitive materials, such as those materials used in rechargeable batteries.
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Screen-Printed Electrodes for Uric Acid Detection

Screen-printed electrodes for uric acid detection

Amperometric Detection of uric acid (UA) in 20mM sodium Borate buffer pH 8. Edet= -0.1V. Screen-printed electrodes for uric acid detection Uric acid is the major end product of purine metabolism. It is present in biological fluids such as urine and blood serum and the detection of anomalous values can...
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Multi-colour electrochemistry: SpectroECL

Multi-colour electrochemistry: SpectroECL

SpectroElectrochemiluminescence instrument for Screen-Printed Electrodes. SpectroECL: Multi-colour electrochemistry Metrohm DropSens offers a compact and versatile solution to perform SpectroElectrochemiluminescence studies, combining in one equipment a biopotentiostat/galvanostat and a microspectrometer integrated in an innovative cell for Screen-Printed Electrodes. This miniaturized and portable alternative is perfect for performing Electrogenerated ChemiLuminescence (ECL) measurements. The...
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EQCM study of underpotentially deposited (UPD) lead adlayer on gold

EQCM study of underpotentially deposited (UPD) lead adlayer on gold

The Autolab Electrochemical Quartz Crystal Microbalance (EQCM) is an optional module for the Autolab PGSTAT which can be used to control a 6 MHz crystal oscillator. This technique can be used to perform electrogravimetric measurements with detection limits in the sub μg range. Immersion of a quartz-crystal oscillator in an electrolyte...
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Spectroelectrochemical measurements: one integrated solution

Spectroelectrochemical measurements: one integrated solution

Metrohm DropSens provides you with one instrument combining Light source (VIS-NIR: 360-2500 nm Tungsten halogen), a Spectrometer (Wavelength range: 900-2200 nm) and a Bipotentiostat/Galvanostat (± 4 V DC potential range, ± 40 mA maximum measurable current). All the components are perfectly fitted and synchronized, thus offering for the first time...
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Interdigitated Gold Electrodes with Platinum heater

Interdigitated gold electrodes with platinum heater

DropSens interdigitated electrodes (IDEs) are composed of two interdigitated electrodes with two connection tracks, on a glass substrate. These IDEs offer several advantages, such as working with low volumes of sample and avoiding tedious polishing of solid electrodes. DropSens InterDigitated Gold Electrodes (IDEs) came up with a new gas sensors...
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Electrochemical impedance spectroscopy of three coated aluminum samples

Electrochemical impedance spectroscopy of three coated aluminum samples

In this Metrohm Application Note, it is shown how the combination of the Autolab PGSTAT204 with the 1 L corrosion cell and the NOVA software facilitates electrochemical impedance spectroscopy (EIS) on coated aluminum samples. EIS provides valuable conclusions concerning the coating quality and thus the corrosion resistance. The electrochemical impedance...
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Electrochemistry Teaching & application kit focused on the determination of L-lactic acid in wine samples

Teaching & application kit focused on the determination of L-lactic acid in wine samples

Metrohm DropSens has released a comprehensive laboratory teaching kit focused on the determination of L-lactic acid in wine samples. Electrochemistry teaching & application kit focused on the determination of L-lactic acid in wine samples Lactate detection is of great importance in a wide variety of areas including the wine industry....
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Corrosion testing and pipeline protection in petrochemistry

Corrosion testing and pipeline protection in petrochemistry

Corrosion – a universal problem Corrosion is one of the main issues petrochemical industry has to tackle. Corrosion degrades the mechanical properties of metal surfaces, lowering their performances. Pipelines, for example, are affected by corrosion induced by environment around them, such as oil, hot temperatures, seawater and microbes. It has...
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