The phrase "amount leached" is correct and usable in written English.
It can be used in contexts related to chemistry, environmental science, or any situation where the quantity of a substance that has been extracted or removed from a material is being discussed.
Example: "The amount leached from the soil during the rainfall was significantly higher than expected."
Alternatives: "quantity extracted" or "volume leached".
Thus, in this simple and well-controlled soil system, N species and amounts leached following addition of organic fertilizer depended on the soil type.
Small amounts leach out of plastics and seep into the body.
[This, incidentally, is not true for silicon vis-à-vis carbon, for those who are contemplating welcoming silicon overlords. Silicon is even more inferior than arsenic in its relative attributes.] Arsenic was used in pesti-, herbi- and insecticides (and in stealth murders), until it became clear that even minute amounts leaching into the water table posed a serious health problem.
The test results indicate that the amount of leached heavy metals was far below the EPA'S regulatory threshold.
The toxicity characteristic leaching procedure test results for the glassy slag revealed that the amount of leached heavy metals was far below the regulatory threshold.
Based on the monitoring of mass, hydrostatic weighing, elongation and the amount of leached OH− the method provides the samples dimensional variations, the volume and mass changes of minerals and free water, corresponding to the main phenomena of the external sulfate attack.
Amount of leached iron was determined with the aid of atomic absorption spectrometer (Varian, Spectra AA 220).
However, at 48 h, all the three diets had no significant (P < 0.05) difference in the amount of leached copper.
The amount of leached iron from waste was 0.15 mg/L after 120 min at pH 2. This result supports that heterogeneous Fenton reaction using steel industry waste was carried out efficiently without iron leaching and this also may support the reuse of this catalyst for several times with same efficiency.
