"concentration varied between" vs "concentration varied from"

Both phrases are correct, but they are used in slightly different contexts. 'Concentration varied between' is used when referring to a range or specific values, while 'concentration varied from' is used when indicating a starting point or a comparison between two different concentrations.

Last updated: April 01, 2024 • 590 views

This phrase is correct and commonly used in English.

""concentration varied between""

This phrase is used to indicate a range or specific values within which the concentration changed.

Show examples from the web [+]

The serum concentrations varied among patients and did not correlate with the dose administered.
Evaluation of safety varied between trials with respect to mode of surveillance, definition of symptoms and time of follow-up.
The ability to quantify needs also varied between regions.
The profit-crediting percentage has varied between 47 % and 71 %.
The amount of aid granted varied between GBP 403 and GBP 7090 per beneficiary.
As a main result, the FSE indicate that the effects from using HTC on the field biodiversity varied between crops.
The market share of Japanese imports varied between 1,3 % and 5,2 % of the Union consumption.
The final pH varied between 6,1 and 7,5.
In 2005, the prices of sales outside the PPAs under assessment varied between 5,4 and 12,91 HUF/kWh.
Financial absorption was an important factor, but the criteria varied between Member States and were often wider subject to availability of robust data (see points 28 and 32).
This varied between 0,6 % in Malta and 2,5 % in Denmark.
For this debt accumulated in 2001-2, interest varied between 14 % and 31 % in the deferral period 2001-4.
The percentage of shares traded in that period varied between 0,01 % and 13,45 % of total shares per month.
In that review, it appears that the market prices for power plants sold in 2000 varied between NOK 1,64 and 1,77 per KWh of annual production capacity.
The rate of the aid varied between 0,12 % and 25 %.
The margin of undercutting as finally established varied between 21 % and 60 % depending on the exporter concerned.
This level is markedly lower than the one observed in the previous review where it varied between 4,3 % and 9,8 %.
Although the investigation into food products demonstrated that quality varied between EU Member States, this is unlikely to imply the existence of any effects detrimental to health.
In two recent cases, the SC has noted that the time required for obtaining such agreement varied between five months and a year.
For example, it would appear from the Commission's communication that the average fine imposed in member states for unauthorised fishing (code D5) varied between Euro 448 and Euro 45710.

Alternatives:

concentration ranged between
concentration fluctuated between

This phrase is correct and commonly used in English.

""concentration varied from""

This phrase is used to indicate a starting point or a comparison between two different concentrations.

Show examples from the web [+]

The serum concentrations varied among patients and did not correlate with the dose administered.
The onset of the reactions varied from days to months.
The duty rates applicable to Chinese FPFAF varied from 14,1 % to 56,2 %.
The harshness of the criticism varied from region to region.
The time to onset of symptoms varied from one day to several months after starting treatment.
The time to onset of symptoms varied from one day to several months after starting treatment.
This indicator varied from 3% in Denmark to 6.5% in Portugal.
Commissions for placing financial index-linked bonds varied from 1 % to 2,5 % of the amount subscribed.
Andrew Beckett's performance on the job varied from competent... to, oftentimes, mediocre... to sometimes flagrantly incompetent.
At Harvard, we call them "concentrations"...
They call it a "concentration camp".
They're called "concentration camps".
For four reference companies in Axens's area of business, the proportion of turnover accounted for by R & D expenditure varied from 2,3 % to 10 % [48].
Prison suicide rates varied from an average of 10 per 10000 detainees to 19 in Belgium and 24 in France.
As at 1 January 2004 its level varied from EUR 121 per month in Latvia, through 498 in Portugal to 1403 in Luxembourg.
The penalty for the same offence in different Member States varied from EUR 500 to EUR 5000.
The loans varied from GBP 73000 to GBP 200000, with a total of GBP 698300.
The setup varied from time to time.
The reactions of the public to the threat of an AH1N1 flu epidemic have varied from one Member State to another, some being characterised by a full-blown panic provoked by alarmist reports.
The loan was paid to the beneficiary in several instalments, so the grace period varied from 2 years to zero.

Alternatives:

concentration changed from
concentration shifted from

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"concentration varied between" vs "concentration varied from"