in 50% concentration vs at 50% concentration

Both 'in 50% concentration' and 'at 50% concentration' are commonly used phrases in English. The choice between them depends on the context in which they are used. 'In 50% concentration' is often used when referring to the actual substance or solution being present in a certain concentration, while 'at 50% concentration' is used when specifying the concentration level at a particular point or location.

Last updated: March 30, 2024 • 887 views

This phrase is correct and commonly used when referring to the actual substance or solution being present in a certain concentration.

"in 50% concentration"

This phrase is used to indicate that a substance or solution is present in a specific concentration level.

Examples:

The solution is prepared in 50% concentration.
The chemical is used in 50% concentration for the experiment.

Show examples from the web [+]

Where initial margin is collected in cash, the 50 % concentration limit referred to in point (a) shall also take into account the risk exposures arising from the third-party holder or custodian holding that cash.
When tested for activity against laboratory strains of HBV, the 50% inhibitory concentration (IC50) value for emtricitabine was in the range of 0.01 to 0.04 µmol/ l.
The 50% inhibitory concentration (IC50) value for emtricitabine against laboratory and clinical isolates of HIV-1 was in the range of 0.0013 to 0.5 µmol/ l.
In recent studies using human cord blood lymphocytes and human embryonic kidney 293 cells, EC50 values (50% inhibitory concentration) ranged from 14-302 nM against laboratory and clinical isolates of HIV-1.
Population pharmacokinetic analyses have shown that smokers have almost 50% lower plasma concentrations of duloxetine compared with non-smokers.
These EC50 values are well below the 50% cellular toxicity concentration range of 87 µM to > 100 µM.
The human oral bioavailability of emedastine is approximately 50% and maximum plasma concentrations were achieved within one-two hours after dosing.
Population pharmacokinetic studies analyses have shown that smokers have almost 50% lower plasma concentrations of duloxetine compared with non-smokers.
3. The accuracy and precision of the method must be ± 50 % at a concentration which represents twice the value of the limit of determination.
The 50% inhibitory concentration (IC50) of amprenavir ranged from 0.012 to 0.08 µM in acutely infected cells and was 0.41 µM in chronically infected cells (1 µM = 0.50 µg/ ml).
The EC50 values for tenofovir were in the range of 0.14 to 1.5 µmol/ l, with CC50 (50% cytotoxicity concentration) values > 100 µmol/ l.
In the short term test the log % concentration remaining is plotted against time and the slope of the initial part (10-50 % degradation) of the plot is equivalent to K1, the (pseudo) first order constant.
EID50 = 50% Embryo infective dose: the virus titre required to produce infection in 50% of the embryos inoculated.
For example, an EC50 is a concentration estimated to cause an effect on a test end point in 50 % of an exposed population over a defined exposure period.
This concentration should inhibit gas production by about 50 %.
LC50 (median lethal concentration) is a statistically derived concentration of a substance that can be expected to cause death during exposure or within a fixed time after exposure in 50 % of animals exposed for a specified time.
The report notes that, incredibly, in 50% of the cases of agricultural fraud, it was impossible to identify the products concerned.
Urine GAG levels were normalized below the upper limit of normal (defined as 126.6 µg GAG/ mg creatinine) in 50% of the patients receiving weekly treatment.
Leukocytosis occurred in 50% of patients with APL, as determined by haematology assessments, rather than adverse event reports.
A transient diffuse swelling may occur at the vaccination site in 50% of the animals, which persists for about 14 days.

Alternatives:

at a concentration of 50%
with a concentration of 50%
at 50% strength
at a 50% level
at a 50% ratio

This phrase is correct and commonly used when specifying the concentration level at a particular point or location.

"at 50% concentration"

This phrase is used to specify the concentration level at a particular point or location.

Examples:

The reaction occurs at 50% concentration.
The enzyme functions optimally at 50% concentration.

Show examples from the web [+]

3. The accuracy and precision of the method must be ± 50 % at a concentration which represents twice the value of the limit of determination.
When tested for activity against laboratory strains of HBV, the 50% inhibitory concentration (IC50) value for emtricitabine was in the range of 0.01 to 0.04 µmol/ l.
Where initial margin is collected in cash, the 50 % concentration limit referred to in point (a) shall also take into account the risk exposures arising from the third-party holder or custodian holding that cash.
The 50% inhibitory concentration (IC50) value for emtricitabine against laboratory and clinical isolates of HIV-1 was in the range of 0.0013 to 0.5 µmol/ l.
In recent studies using human cord blood lymphocytes and human embryonic kidney 293 cells, EC50 values (50% inhibitory concentration) ranged from 14-302 nM against laboratory and clinical isolates of HIV-1.
Population pharmacokinetic analyses have shown that smokers have almost 50% lower plasma concentrations of duloxetine compared with non-smokers.
These EC50 values are well below the 50% cellular toxicity concentration range of 87 µM to > 100 µM.
The human oral bioavailability of emedastine is approximately 50% and maximum plasma concentrations were achieved within one-two hours after dosing.
Population pharmacokinetic studies analyses have shown that smokers have almost 50% lower plasma concentrations of duloxetine compared with non-smokers.
The 50% inhibitory concentration (IC50) of amprenavir ranged from 0.012 to 0.08 µM in acutely infected cells and was 0.41 µM in chronically infected cells (1 µM = 0.50 µg/ ml).
The EC50 values for tenofovir were in the range of 0.14 to 1.5 µmol/ l, with CC50 (50% cytotoxicity concentration) values > 100 µmol/ l.
In the short term test the log % concentration remaining is plotted against time and the slope of the initial part (10-50 % degradation) of the plot is equivalent to K1, the (pseudo) first order constant.
The factory is operating at 50% production capacity.
AEP is controlled at 50 % by Electrabel Italia, and at 50 % by AceaElectrabel.
Some people are at 50% or less.
No wonder the plant's working at 50%.
Even at 50%, nobody's better.
Interferon alfa-2b treatment is to be restarted at 50% of the previous dose.
These 4 combined programs are running at 50% of expected mortality.
Once improved to <= grade 2, reinstate Vectibix administration at 50% of the original dose.

Alternatives:

in a concentration of 50%
with a concentration of 50%
at 50% strength
at a 50% level
at a 50% ratio

How TextRanch works

Fast and reliable proofreading, editing, and language advice tailored to your needs.

1. Choose Your Service

Quick Text Editing

Emails and short texts
Proofreading & editing
Ready in 5-10 minutes

SUBMIT YOUR TEXT NOW

Document Editing

Documents of any type (*.docx)
Advanced & Premium editing
Ready in as little as 4 hours

UPLOAD YOUR DOCUMENT

Ask an Editor

Personalized answers to your language questions
Expert guidance on grammar, style, and usage
Ready in 24 hours

ASK YOUR QUESTION

Upload your document or paste your text directly into our platform. Your text is reviewed and refined by our expert editors (real people, not machines) who understand the nuances of English. Expect corrections, improvements, and insightful suggestions that enhance the clarity, tone, and professionalism of your writing.

3. Receive Your Polished Text

In just a few minutes (or hours for longer documents), you'll receive your corrected text. Review the changes, make any final adjustments, and confidently share your polished English with the world.
You can count on a personalized, friendly service every time you use TextRanch. We're committed to helping you make a great impression with every word you write.

We proofread and edit these types of texts and documents:

Short texts Business Emails Personal Emails Social media posts Resume and Curriculum Vitae Business documents Sales proposal Research and academic papers Thesis Dissertation Essays Articles Blog posts and much more....

Our Customers Love Us!

We have an average rating of 4.79 stars based on 283125 votes, and

4.9 Excellent - Reviews 2.137

"7 years without any disappointment. Always 100% satisfied. You guys are the best in the world at what you do. Thank you so much :)"

Zubair
from Bangladesh

"I wasn't aware of this service, it's fascinating and more reliable than standard IA tools available on the internet"

Arturo
from Mexico

"In a world of text messages and online communication, this is great to have as a live tool. Thank you."

Selena
from USA

"Wow, it's just so excellent. I never would have believed I could have a sure and excellent English companion. Thanks, TextRanch."

Ifiok
from Nigeria

"This is my first time using TextRanch, and I like how the editors take time to correct my text. To everyone who has never used TextRanch before, I highly recommend trying it."

Wilson
from France

"It is an amazing source of feedback because, as a non-native speaker, I really need to have a reliable helper correct my text."

Susan
from Germany

in 50% concentration vs at 50% concentration