filtered off

USAGE SUMMARY

The phrase "filtered off" is correct and usable in written English.
It can be used when describing the process of removing or separating something from a mixture or system, often in a scientific or technical context. Example: "The impurities were filtered off to obtain a pure sample of the solution."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

The purified product was filtered off and dried in vacuo.

Nanoscale Research Letters

The undissolved materials were filtered off before injection.

Chemistry Central Journal

The formed solid was filtered off and dried at 110 °C for 12 h.

Applied Petrochemical Research

The precipitate was filtered off and washed with ice-cold methanol.

Chemistry Central Journal

The originated blue TiO2 - GO nanocomposite was filtered off and dried at 105°C.

Chemistry Central Journal

The separated solid was filtered off and crystallized from an approper solvent to give 12a b.

Chemistry Central Journal

The solid precipitate so-formed was filtered off, washed with water and crystallized from ethanol.

Chemistry Central Journal

The crude solid product was filtered off and recrystallized from DMF, yield 85%, mp.

Chemistry Central Journal

The precipitated triethylamine hydrochloride was filtered off, and the filtrate was evaporated under reduced pressure.

Chemistry Central Journal

Human-verified similar examples from authoritative sources

Similar Expressions

2 human-written examples

Signals were high-pass filtered off-line at 10 Hz using a second order Butterworth filter.

European Journal of Applied Physiology

The SCR measurements were also digitally filtered off-line by using the EEGLAB software.

Brain Topography

Expert writing Tips

Best practice

Use "filtered off" when a solid is being separated from a liquid. Use "filtered out" when removing unwanted wavelengths from a signal.

Common error

Do not use "filtered off" when you intend to convey the meaning of digitally filtering data. In those cases, it's better to use "filtered out" or "digitally filtered".

Linguistic Context

The phrase "filtered off" primarily functions as a phrasal verb used in the passive voice. It describes the action of removing solid particles from a liquid or solution by using a filter, as illustrated by Ludwig's examples.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "filtered off" is a common and grammatically correct phrasal verb predominantly used in scientific and technical writing to describe the separation of solid particles from a liquid using a filter. As Ludwig AI indicates, it's appropriate for formal contexts and should be used when precision is required. While alternatives like "separated out" exist, "filtered off" is more specific to the filtration process. Be careful to avoid using "filtered off" when describing digital signal processing, where "filtered out" is more appropriate.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

removed by filtration

Explicitly states the method of removal as filtration, offering a more descriptive alternative.

precipitated and removed

Describes a process where a substance is first made to precipitate before being separated.

strained out

Implies removal of solid particles through a mesh or sieve, emphasizing the physical barrier used.

sieved off

Similar to 'strained out', but specifically refers to using a sieve for separation.

separated out

A more general term for isolating one component from a mixture, without specifying the method.

decanted

Specifically refers to pouring off a liquid while leaving a sediment behind.

extracted

Suggests selectively drawing out a substance from a mixture, possibly using a solvent.

isolated

Indicates the process of obtaining a pure substance by removing it from its original environment.

withdrawn

A more general term suggesting something is taken away, but doesn't specify the separation method.

cleared of

Indicates the removal of something to make the remaining substance clear or pure.

FAQs

How is "filtered off" used in scientific writing?

In scientific writing, "filtered off" describes a process where solid particles are separated from a liquid using a filter. For example, "The precipitate was filtered off to obtain a clear solution".

What is the difference between "filtered off" and "filtered out"?

"Filtered off" typically refers to physically separating solid particles from a liquid using a filter. "Filtered out" can refer to both physical separation and the removal of specific elements or components from a mixture or dataset, such as frequencies from a sound signal.

What are some alternative phrases for "filtered off" in a scientific context?

Depending on the context, alternatives include "separated by filtration", "removed by filtration", or "isolated through filtration".

Is it grammatically correct to use "filtered off" in formal writing?

Yes, "filtered off" is grammatically correct and appropriate for use in formal writing, especially in scientific or technical contexts. It clearly and concisely describes a specific separation process.