they are fractionated

USAGE SUMMARY

The phrase "they are fractionated" is correct and usable in written English.
It can be used in contexts where something is divided into smaller parts or components, often in scientific or technical discussions. Example: "In the process of separation, they are fractionated to isolate the desired compounds."

✓ Grammatically correct

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

Since the crossed DNA segments can either be G- or T-segment by chance, they are fractionated into both IP fractions, P1 and P2.

Plosone

Escape of volatiles from the system can occur "osmotically" if the enclosing rocks are pervious to them but not to the magma, but in general they are fractionated in favour of the residual melt until their concentration reaches the limit of solubility under the prevailing conditions of temperature and effective confining pressure.

Britannica

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

Then, they were fractionated by centrifugation at 20,000 g for 20 min. The lower fraction was centrifuged at 100,000 g for 1 h.

BMC Plant Biology

A study of Fe isotopes in human blood samples established that they were fractionated, and that the mean Fe isotope value is different in the blood of men and of women [10].

Geochemical Transactions

Immediately after blood samples were collected, they were fractionated by using standard procedures and stored at −80°C until analysis.

Plosone

They were fractionated by SDS (1%) poly-acrylamide gel electrophoresis (12%) and electrotransferred onto nitrocellulose filters.

BMC Cancer

After dissolving in 1 % FA they were fractionated using preparative and semi-preparative RP-C18 HPLC (Knauer, Eurospher I 5 μm; 250 × 16.1 mm; 100 Å) using a Knauer 1200 series unit, with an isocratic flow of 30%% acetonitrile: H2O (v/v) at a flow rate of 8 mL min−1.

Amino Acids

The homogenized cells are fractionated, most commonly through centrifugation.

Bioinformatics and Biology Insights

In addition to the BCR-ABL/TEL-AML example, diffuse large B-cell lymphoma patients are a candidate for this approach since they can be fractionated into good and poor prognosis groups using DNA microarray data [ 50- 52] or 6 genes [ 53].

BMC Cancer

Gradients were fractionated with fraction collector Model 2128 (Biorad).

Nature

The polymers were fractionated by fractional precipitation.

Polymer

Expert writing Tips

Best practice

When using "they are fractionated", ensure the context clearly indicates the method of separation or the criteria used for dividing the elements. Be specific about what "they" refers to.

Common error

Avoid using "they are fractionated" in general writing where simpler terms like "divided" or "separated" would be more appropriate. This phrase is most suitable for scientific or technical discussions where a specific separation process is involved.

Linguistic Context

The phrase "they are fractionated" serves as a passive construction indicating that a subject is undergoing a process of separation into distinct components or fractions. Ludwig AI examples show this usage in scientific contexts, such as separating cell lysates or chemical compounds.

Expression frequency: Rare

Frequent in

Science

75%

Encyclopedias

25%

News & Media

0%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "they are fractionated" is grammatically correct and primarily used in scientific and technical contexts to describe a systematic separation process. While Ludwig AI confirms its proper usage, simpler alternatives may be more suitable for general writing. The phrase's formal register and specific connotation make it ideal for scenarios where precision and technical accuracy are paramount.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

they are separated

Focuses on the act of setting things apart, implying a clearer distinction than fractionation.

they are partitioned

Suggests a division into distinct sections or areas, often with specific boundaries.

they are divided

A more general term for splitting into parts, lacking the technical connotation of fractionation.

they are sorted

Implies arranging items into categories based on shared characteristics.

they are resolved

Focuses on distinguishing individual components from a mixture or complex entity.

they are broken down

Emphasizes the decomposition or simplification of a complex substance or system.

they are segmented

Highlights the division into discrete, self-contained units.

they are extracted

Implies that components are removed or drawn out from a mixture.

they are refined

Focuses on improving purity and concentration of individual components.

they are isolated

Emphasizes obtaining individual elements separately from the rest.

FAQs

How is "they are fractionated" used in scientific writing?

In scientific writing, "they are fractionated" describes a process where a substance is separated into different components or fractions, often based on physical or chemical properties. For example, "the cell lysates "were fractionated" into nuclear and cytoplasmic fractions".

What are some alternatives to "they are fractionated" in simpler contexts?

In less technical contexts, you can use phrases like "they are separated", "they are divided", or "they are sorted" depending on the specific meaning you want to convey.

What's the difference between "they are fractionated" and "they are separated"?

"They are fractionated" typically implies a more precise and systematic separation process, often based on specific properties. "They are separated" is a more general term that can refer to any kind of division or segregation.

Is "they are fractionated" appropriate for informal writing?

While grammatically correct, "they are fractionated" is generally too technical for informal writing. Simpler alternatives like "they are divided" or "they are split up" are usually more suitable.