Shimadzu Direct Probe Ionization Mass Spectrometer Kit - Hmotnostní spektrometry s přímou ionizací

It is extremely easy to operate and it is able to measure samples such as chemical products, food materials, and biological samples, directly or with very minimal sample pretreatment.

Features of PESI (Probe Electrospray Ionization)

• Perform MS analysis directly on the sample.
• Suitable for thermally labile compounds, no direct heat applied.
• Highly resistant to MS contamination, even with complex matrices.

Simple Workflow

Shimadzu: Direct Probe Ionization Mass Spectrometer Workflow

Perform MS analysis directly on the sample.

Analysis of Components in Surfactant Mixtures

An example of the screening of complex mixtures of cosmetics and personal care products in full-scan mode is shown below. Changes in spectral results indicate corresponding changes in composition. Samples can often be deposited directly onto the sample plate.

Shimadzu: DPiMS - Analysis of Components in Surfactant Mixtures

Suitable for thermally labile compounds, no direct heat applied.

Evaluating Dietary Supplements

Foods such as fish contain large amounts of DHA or other polyunsaturated fatty acids; however, it can be difficult to obtain adequate quantities in a standard diet. Consequently, they are available as dietary supplements in capsule form. These compounds are susceptible to oxidation by heat or UV exposure. In this example, UV exposure and subsequent oxidation of DHA and EPA contained in supplements was easily confirmed by PESI analysis without extensive sample preparation.

Shimadzu: DPiMS - Evaluating Dietary Supplements

DPiMS-8060 - Switching to LCMS is Easy

The PESI TQ unit can be removed easily and replaced with an ESI unit. That means samples can be measured using the same ionization principle and standard substance for data comparisons.

Shimadzu - DPiMS-8060 - Switching to PESI and ESI TQ

Highly resistant to MS contamination, even with complex matrices.

Protects Your Mass Spectrometer from High-Concentration Samples

To prevent instrument fouling, samples with unknown concentration levels should not be injected directly into a mass spectrometer. Extensive experience or precautionary sample dilution is normally required to protect a laboratory's investment in a mass spectrometer. However, the DPiMS-2020 is able to minimize the quantity injected into the MS because it only ionizes and measures the trace quantity of liquid that clings to the probe tip.

Furthermore, whereas preparation for analysis on an LC-MS system requires time and effort to prepare samples, prepare mobile phases, and develop analytical conditions, preparation for the DPiMS-2020 involves simply dripping samples onto the plate or mixing with a solvent. Also, measurement results can be obtained in only two to four minutes, which makes it perfect for quick screening.

Shimadzu: DPiMS - Process Flow for Analyzing Three Samples