Results 121 to 130 of about 4,492 (181)

Methylated Biochemical Fulvic Acid-Derived Hydrogels with Improved Swelling Behavior and Water Retention Capacity. [PDF]

Materials (Basel)
Shi C, Lv X, Peng J, Zhu J, Tang F, Hu L.   +5 more
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Medicinal applications of fulvic acid

Clinical and Experimental Pharmacology, 2016
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Simultaneous adsorption of fulvic acid and organic contaminants by KOH activated mesoporous biochar with large surface area. [PDF]

Heliyon
Hu M, Wu W, Zhou C, Zhu H, Hu L, Jiang L, Lin D, Yang K.   +7 more
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Fulvic acid alleviates cadmium-induced root growth inhibition by regulating antioxidant enzyme activity and carbon-nitrogen metabolism in apple seedlings. [PDF]

Front Plant Sci
Yu B, Xue X, Nie P, Lu N, Wang L.
europepmc   +1 more source

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Total synthesis of fulvic acid

Journal of the Chemical Society, Chemical Communications, 1984
Synthesis of fulvic acid (1a) was accomplished by a route involving selective ozonization of 9-propenylpyranobenzopyran (1c), obtained by a regioselective cyclization of the 2-methylsulphinylmethyl 1,3-dione(3c).
Masashige Yamauchi, Sadamu Katayama, Toshiharu Todoroki, Toshio Watanabe   +3 more
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Contribution of fulvic acid to the photochemical formation of Fe(II) in acidic Suwannee River fulvic acid solutions

Chemosphere, 2010
We investigated the contribution of fulvic acid to the photoformation of Fe(II) using aqueous Suwannee River fulvic acid (SRFA) as a surrogate for the humic-like substances (HULIS) found in atmospheric condensed phases. The effects of pH (3.2, 4.1, and 5.0) and wavelength (313, 334, 366, and 405nm) on Fe(II) photoformation were studied using ...
Takemitsu, Arakaki, Kiwamu, Saito, Kouichirou, Okada, Hitomi, Nakajima, Yuya, Hitomi   +4 more
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Biological decomposition of fulvic acid preparations

Folia Microbiologica, 1976
Decomposition of preparations of various fractions of fulvic acids in pure cultures of bacteria and in the soil was investigated. In the soils enriched with fulvic acids the amount of bacteria increased, oxygen consumption and formation of carbon dioxide followed a typical sigmoid curve.
F, Kunc, R A, Lokhmacheva, J, Macura
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Polarity based fractionation of fulvic acids

Chemosphere, 2009
Fulvic acids from the soil of Peking University (PF) and a Nordic river (NF) were separated into well defined sub-fractions using sequential elution techniques based on eluent polarity. The chemical properties of the fractions including: PF1 and NF1 (eluted by 0.01 M HCl), PF2 and NF2 (eluted by 0.01 M HCl+20% methanol), PF3 and NF3 (eluted by 0.01 M ...
Aimin, Li, Jundong, Hu, Wenhui, Li, Wei, Zhang, Xuejun, Wang   +4 more
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Effects of fulvic acids on goat sperm

Zygote, 2018
SummaryThe effects of adding fulvic acids (FAs) to semen extenders on the quality parameters of frozen–thawed goat buck spermatozoa remain undetermined. Buck semen samples collected from six mature goat bucks once a week were diluted with Tris–egg yolk-based extenders.
Yu, Xiao, Zhengmu, Wu, Min, Wang
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Binding of cadmium to Laurentide fulvic acid. Justification of the functionalities assigned to the predominant acidic moieties in the fulvic acid molecule

Talanta, 1995
The binding of cadmium to a fulvic acid (FA) extracted from peat was studied as a function of pH (4-8), ionic strength (0.01 and 0.10 M NaNo(3)) and ratio of fulvic acid to metal ion concentrations (FA Cd = 8, 4 , and 2). An overall complex formation function of approximately 10(3.14) was determined to enable comparison with previous studies ...
A S, Mathuthu, J H, Ephraim
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