was extracted by

USAGE SUMMARY

The phrase "was extracted by" is correct and usable in written English.
It can be used when describing the process of obtaining something from a source, often in scientific or technical contexts. Example: "The DNA sample was extracted by the laboratory technicians using a specialized kit."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Bitumen "A" was extracted by Soxhlet extraction and rotary evaporation.

Petroleum Science

Khz-cp was extracted by solvent extraction.

BMC Complementary and Alternative Medicine

Total RNA was extracted by RNAeasy extraction kit (Qiagen).

EMBO Molecular Medicine

Erythrocyte genomic DNA was extracted by phenol-chloroform extraction [29].

Plosone

The deuterated product was extracted by an ether/water extraction.

Geobiology

Pectin was extracted by conventional and microwave assisted extraction.

Ultrasonics Sonochemistry

Data was extracted by using a standardized data extraction form.

BMC Nephrology

Inulin was extracted by pulsed electric fields (PEFs) assisted diffusion.

Industrial Crops and Products

Protein was extracted by methanol−chloroform precipitation and 2× 1 mL methanol washes.

Nature

The supernatant was extracted by centrifugation at 12,000g at 4 °C for 5 min.

Nature

Cell lysate was extracted by RIPA buffer with protease inhibitors (Roche).

Nature

Expert writing Tips

Best practice

When using "was extracted by", specify the method or agent used for extraction to provide clarity and context. For example: "The DNA was extracted by phenol-chloroform extraction."

Common error

While "was extracted by" is grammatically correct, overuse of the passive voice can make writing sound less direct. Consider using the active voice when appropriate: "Researchers extracted the DNA using phenol-chloroform."

Linguistic Context

The phrase "was extracted by" functions as a passive construction indicating the method or agent used to obtain something from a source. Ludwig AI confirms its proper usage in scientific and technical contexts. The passive voice emphasizes the object being extracted rather than the actor.

Expression frequency: Very common

Frequent in

Science

90%

Formal & Business

5%

News & Media

3%

Less common in

Academia

1%

Encyclopedias

0.5%

Wiki

0.5%

Ludwig's WRAP-UP

In summary, the phrase "was extracted by" is a grammatically sound and common expression, particularly in scientific and technical writing. As Ludwig AI confirms, it's used to describe a process where a substance or data is obtained from a source. While it's generally appropriate, remember to consider the possibility of using the active voice for a more direct writing style. Common alternatives include "was obtained from", "was derived from", and "was isolated from". The phrase's prevalence in scientific literature makes it a formal expression.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

was obtained from

Focuses on the source of origin rather than the extraction method.

was derived from

Emphasizes the process of obtaining something as a result of a procedure.

was isolated from

Specifically suggests separation from a complex mixture.

was removed from

Highlights the action of taking something away from a source.

was separated from

Implies a process of distinguishing and segregating from a mixture or compound.

was retrieved from

Suggests recovering something that was previously stored or hidden.

was drawn from

Implies taking something from a larger source or supply.

was harvested from

Suggests gathering something after a period of growth or preparation.

was leached from

Highlights a process where a substance is removed by washing.

was filtered from

Implies using a filter to separate a substance from a mixture.

FAQs

What does "was extracted by" mean?

The phrase "was extracted by" indicates that something was taken or separated from a source using a particular method or agent. It's commonly used in scientific and technical contexts to describe processes like obtaining DNA, RNA, or chemical compounds.

How can I rephrase "was extracted by" to sound more active?

To use a more active voice, you can rephrase sentences using "extracted using", or stating that someone "extracted" the substance. For example, instead of "The data "was extracted by" the author", you could say "The author extracted the data".

What are some synonyms for "was extracted by"?

Some synonyms for "was extracted by" include "was obtained from", "was derived from", "was isolated from", or "was removed from". The best choice depends on the specific context.

Is it better to use "was extracted by" or "extracted using"?

Both "was extracted by" and "extracted using" are grammatically correct, but "extracted using" is more concise. Using the former or latter depends on the specific writing style. For example, "DNA "was extracted by" the CTAB method" and "DNA was extracted using the CTAB method" are equivalent.