The phrase "appreciable portion" is correct and usable in written English.
It can be used to describe a significant or noticeable amount of something, often in contexts involving measurement or assessment.
Example: "The study revealed that an appreciable portion of the participants reported experiencing anxiety."
Alternatives: "significant amount" or "notable share".
An appreciable portion of northwestern Utah was involved in the Olympics, as the sporting venues were located not only across the Salt Lake City metropolitan area but also as far afield as Provo, Park City, and Ogden.
The elder Francis Blair, one of McClellan's greatest patrons, seconded their advice: "No appreciable portion of the nation will favor the long continuation of Slavery after this war is over or will tolerate any guarantees of its perpetuity as the price of peace".
An appreciable portion of off-road pollution is allocated to farm implements.
The lamella-patterned carbon particles were further developed into a highly ordered structure in an appreciable portion on calcination at 2800 °C in argon gas.
The net consumption in 2011 was 18.14 billion kWh and slightly less than the generation in 2012; due to an agreement with Niger Republic under the West African Power Pool [37], appreciable portion of the electricity generated was exported to Niger Republic leaving back a short fall for the entire citizenry.
An appreciable portion of the rise in type 2 diabetes can be attributed to BMI changes.
The Overfit-Regional absences-86 points model had a substantially larger geographic projection to the U.S., with appreciable portions of all coastal states (and inland as far as Arkansas) from North Carolina to Alaska (Fig. 6).
An appreciable, potential dependent portion of the Galvani voltage seems to be due to a voltage drop in a space charge layer in the semiconductor.
However, for patients on the flat portion of the Starling curve, aggressive fluid administration results in no appreciable increase in CO and may be detrimental [1 3].
Their study provides the limit of detection and the limit of quantification for their technique, but suffers due to the necessity of a large portion of QDs to penetrate the skin in order to achieve appreciable collection in the distal organs over background, with the first detectable difference in barrier defect occurring after 2% of the applied dose collected in the liver.
