Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
longer retention time
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "longer retention time" is correct and usable in written English.
It can be used in contexts such as scientific research, data storage, or any situation where the duration of holding or maintaining something is being discussed. Example: "The new storage system offers a longer retention time for archived data, ensuring that important information is preserved for future access."
✓ Grammatically correct
Science
Formal & Business
News & Media
Alternative expressions(20)
extended duration
enhanced durability
longer completion time
longer survival time
copious time
great of time
generous time allowance
severe time
a variety of time
extended durations
plenty of time
wide notice
enough time
adequate time
intense scrutiny
extended length
greater notice
appropriate time
keen attention
extended period
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Longer retention time increases methane content in the biogas.
Science
These customers also provide high value to the company by way of high margins, strong loyalty and longer retention time.
News & Media
It is anticipated that ethane will undergo more cracking when passed through a longer reaction zone (longer retention time).
For 177Lu-DOTA-control IgG, we observed a longer retention time in the blood pool compared to 177Lu-DOTA-chCE7 177Lu-DOTA-chCE7 177Lu-DOTA-chCE7
Science
Although all compounds could be separated satisfactorily with the Agilent Zorbax, it had a longer retention time.
Science
The CGA fluids showed more stable frontal displacement, lower injection pressure and longer retention time as compared to polymer flooding (Samuel et al. 2012).
As expected, the MALS detector trace shows a shift to longer retention time after addition of cross-linker similar to what we observed using standard SEC.
This radiometabolite was conceived to be more lipophilic than the parent radioligand, as it displayed a longer retention time in HPLC.
Science
DFO complexes unlabelled 68Ga instantly and shows a longer retention time on RP-18 HPLC (see Additional file 1: Figure S1). 1 GBq n.c.a.
Although ethanol and propanol gave sharp peaks, yet they were not selected as using ethanol gave longer retention time and propanol resulted in poor resolution.
Science
The combination of higher initial lateral speed of the gas bubble, longer retention time, and greater interfacial area led to the improvement of product concentration.
Expert writing Tips
Best practice
When describing the benefits of a product or process, quantify the "longer retention time" with specific numbers or metrics to provide a clearer understanding of the improvement.
Common error
Avoid using "longer retention time" when you actually mean shelf life. Retention time refers to the duration something is maintained or held, while shelf life refers to the length of time a product remains usable, fit for consumption or saleable.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "longer retention time" functions as a noun phrase, often used as an adjective modifying another noun. It describes the duration that something is held or maintained. Ludwig AI identifies this phrase used to explain technical properties in the examples.
Frequent in
Science
75%
Formal & Business
15%
News & Media
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "longer retention time" is a common and grammatically correct term used primarily in scientific and technical fields to describe the extended duration that something is held or maintained. Ludwig AI confirms its frequent appearance in academic and research contexts. While alternatives like "extended duration" or "prolonged holding period" exist, "longer retention time" is particularly suited for discussions involving chromatography, drug delivery, and material science. When employing this phrase, ensure that you quantify the time frame and avoid confusing it with terms like shelf life.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
extended residence time
Highlights the time something remains in a specific location or system, often used in scientific or engineering contexts.
extended duration
Focuses on the length of time something lasts, moving away from the specific idea of 'retention'.
increased storage time
Specifically relates to the duration something can be stored, narrowing the context to storage-related situations.
prolonged holding period
Emphasizes the period during which something is held, rather than its capacity to be retained.
improved longevity
Focuses on the long life or lifespan of something, differing from the immediate act of retention.
increased dwell time
Specifies the amount of time spent in a particular state or condition, altering the context slightly.
increased stability
Highlights the stability of whatever is being retained over time, shifting focus from the duration itself.
greater persistence
Underscores the continuing existence or influence of something over an extended time.
enhanced durability
Stresses the ability to withstand wear or damage for a longer period, rather than direct retention.
longer lasting effect
Shifts the emphasis to the duration of an effect or impact, rather than physical retention.
FAQs
How to use "longer retention time" in a sentence?
You can use "longer retention time" to describe various scenarios. For example, "The new coating provides a "longer retention time" for the paint on the metal surface" or "Increasing the column length resulted in a "longer retention time" of the compounds during chromatography".
What is an alternative to "longer retention time"?
Alternatives include "extended duration", "prolonged holding period", or "increased storage time", depending on the specific context.
What does "longer retention time" mean in chemistry?
In chemistry, "longer retention time" typically refers to the amount of time a substance spends in a chromatography column. A "longer retention time" usually indicates a stronger interaction between the substance and the stationary phase.
Is "longer retention time" better?
Whether a "longer retention time" is desirable depends on the application. In some cases, such as drug delivery, a "longer retention time" can improve efficacy. In other cases, such as chromatography, it may indicate a need for optimization.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested