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“The Skillset of the Chromatographer Is Evolving”: How LC Analysis Benefits From Digitization

A scientist inspecting a vial taken from a liquid chromatography instrument.
Credit: iStock.
Read time: 3 minutes

Traditional liquid chromatography (LC) workflows are plagued by manual, error-prone, and time-consuming tasks that take up analysts' time through repetitive operations. Modern LC workflows are transitioning towards automated, data-driven analysis, in which AI and robotics help enable more predictable, scalable, and resilient workflows.

 

Technology Networks spoke with Dr. Stefan Ullrich, director of HPLC portfolio development, automation, and purification at Agilent Technologies, to learn more about how automation can benefit LC workflows and the potential of AI and analytics to help scientists conduct more proactive, confidence-driven analysis.

Blake Forman (BF):

As labs move toward fully digital workflows, where do you see the biggest opportunities to automate LC analysis?


Stefan Ullrich, PhD (SU):

One of the main drivers of automation is error reduction; therefore, sample handling and logistics are central to the success of such workflows.

 

At the hardware level, this requires a standardized, reliable sample handoff between stations within the workflow chain.

 

At the workflow level, the system must continuously track the location, identity, and state of each sample, as well as the remaining time for each workflow step. Preventing sample mix-ups is critical; LC systems must be able to detect a sample and verify its identity against a central database before execution.

 

An equally important aspect is data generation and flow between the chromatography data system, the orchestration layer, and the laboratory information management system. Data collected in standardized formats and accessible from a central location can serve as decision points for executing, skipping, or repeating workflow steps. This requires on-the-fly data evaluation and the ability to feed results back into the workflow logic in near real time.

 

For automated workflows to run continuously over extended periods, robust handling of deviations is essential. Predefined recovery paths—for example, for missing samples, failed injections, or unexpected system states—allow workflows to continue without constant operator intervention.

 

Finally, continuous operation also depends on resource planning. LC systems and the surrounding workflow must be able to estimate consumable usage, compare these predictions against available stock, and react accordingly before a workflow is interrupted.



BF:

How can embedded analytics or realtime system monitoring improve chromatographic robustness?


SU:

Improving robustness starts with making the operational state of the chromatography system more transparent during execution. Modern LC systems generate a wide range of signals that historically have been assessed only after a run or in response to a failure. By continuously monitoring and trending these signals, users gain earlier visibility into changes that may affect method performance or data quality.

 

A further aspect of robustness is the connection between system monitoring and data context. When instrument behavior, chromatographic results, and usage history are accessible in a unified way, users can more confidently assess method stability and reproducibility over longer campaigns or across multiple instruments.

 

By embedding monitoring and analytics close to the instrument and focusing on early visibility rather than postfailure analysis, realtime system insight becomes a practical tool to improve chromatographic robustness while keeping operational complexity low.



BF:

What advances in automated sample preparation are being integrated into LC workflows, and how do these impact overall throughput and reproducibility?


SU:

Advances in automated sample introduction, tracking, and preparation are driven by the need to reduce manual handling steps, which are both time-consuming and error-prone.

 

On the hardware side, this includes autosamplers and robotics-ready interfaces that support standardized sample formats, higher sample capacity, and reliable handoff between preparation, analysis, and downstream steps.

 

Equally important is sample tracking across the workflow. By treating samples as uniquely identified objects, LC workflows can maintain sample identity from preparation through analysis and data evaluation. This reduces the risk of mix-ups, transcription errors, or misaligned results, especially in high-throughput or multi-user environments. Automated sample preparation steps further improve consistency by minimizing operator-to-operator variability. 



BF:

As automation and AI become more central to laboratory operations, how are the skillset requirements of scientists changing? 


SU:

Traditional chromatography expertise will remain essential but will be applied differently in the future. Rather than focusing on individual injections or manual adjustments, users will increasingly work with predefined methods and standardized workflows that need to be evaluated at a system and workflow level.

 

At the same time, automation will continue to lower the barrier for less experienced users to operate LC systems reliably. Embedded guidance, tracking, and analytics are expected to reduce initial training requirements and reliance on advanced knowledge and help ensure more consistent execution across teams and shifts.

 

The skillset of the chromatographer is evolving from that of a hands-on instrument specialist to a workflow-oriented problem solver—someone who understands the analytical context, increasingly relies on automation for consistent execution, and applies expertise where it adds the greatest value.


BF:

Looking ahead, what developments do you anticipate will have the biggest impact on digital LC workflows?


SU:

Today, many digital functions exist as standalone elements. The next step will be their tighter integration across instruments, software layers, and workflow steps, enabling LC systems to be managed as part of an end-to-end (analytical) process.

 

A second major development will be the increasing decoupling of digital capabilities from fixed hardware lifecycles. As LC platforms evolve, more functionalities will be delivered through software, analytics, and modular upgrades rather than full system replacement. This will allow laboratories to adopt new digital capabilities incrementally, without disrupting validated workflows or forcing large-scale reinvestment.

 

Improved workflow orchestration and sample-centric data models are also expected to play a key role. This is particularly important as workflows grow more complex.

 

Finally, advances in analytics and AI will primarily impact LC workflows through decision support rather than full autonomy. Predictive diagnostics, trend analysis, and usage-based insights will increasingly help users anticipate issues, plan maintenance, and avoid failed sequences. Over time, this will shift LC operation from reactive troubleshooting to more proactive, confidence-driven workflow execution.



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