PAL RTC – Automated Sample Preparation System
The PAL System is a robotic platform for automated sample preparation in analytical laboratories. With a modular "Tool Box" design and over 70,000 installations worldwide, it is a highly flexible and reliable solution that can be configured for simple injections or complete, complex workflows for chromatography and mass spectrometry.
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![]() | Highest Level of Automated Sample PreparationPAL RTC Automated Sample Preparation |
- Automatic selection of the syringe with optimal accuracy for adding standards or preparing serial dilutions
- Automated Sample Preparation System to automatically switch between injection, micromethods (SPME, uSPE,…) and sample prep tools (dilution, standard addition,…)
- Possibility to permanently configure several workflows on one system for a walk-up prep station, e.g. liquid/ liquid extraction and Solid Phase Extraction (SPE)
- Derivatization reactions performed without manual intervention for productivity, protection against hazardous chemicals and process safety
- Better process safety through increased automation of labour intensive manual workflows like protein digestion
![]() | LC/MS Multiplexing is a powerful strategy to maximize the productivity of a mass spectrometer. By connecting a single MS to two or more LC systems, the PAL System can manage staggered injections so that the MS is constantly analysing samples instead of waiting for a column to finish its run and equilibrate. This approach can double or even triple your sample throughput without the cost of an additional mass spectrometer. |
| What are the main advantages of automating sample preparation? | |
Automating your sample preparation with the PAL System addresses the most common challenges in the analytical lab. Key benefits include:
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| What should I consider when choosing an automation platform for my lab? | |
When selecting an automation platform, it's crucial to look beyond your immediate needs. Key considerations include:
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| What is the relationship between CTC Analytics AG and the PAL System? | |
| CTC Analytics AG (Computer Technologie Cueni) is the Swiss company that has been developing and manufacturing the PAL System since 1985. "PAL System" (Prep and Load System) is the globally recognized brand name for the sample handling platform, and PAL is a registered trademark of CTC Analytics AG. | |
| What is automated µSPE and what are its applications? | |
µSPE, or Micro SPE, is a miniaturized and automated Solid Phase Extraction technique that operates in two primary modes for highly efficient sample preparation:
The versatility of µSPE, determined by the cartridge chemistry, enables a wide range of applications, from general clean-up to targeted analysis like PFAS analysis using weak anion exchange (WAX) cartridges, or fractionation in metabolomics analysis. Key advantages are minimized solvent use, cleaner extracts without sample dilution, and improved data quality, leading to higher instrument uptime. | |
The PAL System is available in three main configurations (in various sizes) to match different laboratory needs for throughput and workflow complexity:
PAL RSI (Robotic Sample | PAL RTC (Robotic | PAL DHR (Dual Head Robotic): |
A robust and cost-effective | This model offers greater flexibility and productivity by automatically | The most productive model, featuring two independent robotic heads. It can perform two |
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- Model: PAL RTC
- Manufactured by: CTC Analytical PAL Systems


















