Determination of phytate in high molecular weight, charged organic matrices by two-dimensional size exclusion-ion chromatography

Elkin, Kyle R.; Slingsby, Rosanne; Bryant, Ray B.

doi:10.1016/j.talanta.2016.04.059

Cited by 2 publications

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References 20 publications

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“…In the laboratory, glass beakers were filled with 200 mL of deep pond water, which was treated in triplicate with 0 (control), 5, 10, 15, 25, 30, and 50 mg L −1 of reagent‐grade calcium carbonate (CaCO 3 ), calcium sulfate (CaSO 4 ⋅2H 2 O), calcium hydroxide [Ca(OH) 2 ], ferric sulfate [Fe 2 (SO 4 ) 3 ], and aluminum sulfate [Al 2 (SO 4 ) 3 ⋅14H 2 O]. These particular salts were selected based on their proven success in reducing P in surface water (Cooke et al, 1993b; Kennedy and Cooke, 1982; Prepas et al, 2001; Bryant et al, 2012; Mattson, 2015), controlling P loss from soil (Moore and Miller, 1994; Faveretto et al, 2006; Moore and Edwards, 2007) and managing nutrients (i.e., calcium sulfate) and weed infestations (i.e., iron sulfate) in blueberry ( Vaccinium corymbosum L.) and cranberry production (Hanson and Berkheimer, 2004; White, 2012; Sandler and Ghantous, 2016). …”

Section: Methodsmentioning

confidence: 99%

Managing Surface Water Inputs to Reduce Phosphorus Loss from Cranberry Farms

et al. 2017

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Cranberry (Vaccinium macrocarpon Ait.) production in Massachusetts represents one‐fourth of the US cranberry supply, but water quality concerns, water use, and wetland protection laws challenge the future viability of the state's cranberry industry. Pond water used for harvest and winter flooding accounts for up to two‐thirds of phosphorus (P) losses in drainage waters. Consequently, use of P sorbing salts to treat pond water holds promise in the mitigation of P losses from cranberry farms. Laboratory evaluation of aluminum (Al)‐, iron (Fe)‐, and calcium (Ca)‐based salts was conducted to determine the application rate required for reducing P in shallow (0.4 m) and deep (3.2 m) water ponds used for cranberry production. Limited P removal (<22%) with calcium carbonate and calcium sulfate was consistent with their relatively low solubility in water. Calcium hydroxide reduced total P up to 49%, but increases in pond water pH (>8) could be detrimental to cranberry production. Ferric sulfate and aluminum sulfate applications of 15 mg L−1 (ppm) resulted in near‐complete removal of total P, which decreased from 49 ± 3 to <10 μg P L−1 (ppb). However, ferric sulfate application lowered pH below the recommend range for cranberry soils. Field testing of aluminum sulfate demonstrated that at a dose of 15 mg L−1 (∼1.4 Al mg L−1), total P in pond water was reduced by 78 to 94%. Laboratory and field experiments support the recommendation of aluminum sulfate as a cost‐effective remedial strategy for reducing elevated P in surface water used for cranberry production. Core Ideas Cranberry farming is challenged by water quality regulations for phosphorus. Five salts were applied to reduce P in pond water used for cranberry production. Calcium, iron, and aluminum affected P solubility and pH of pond water differently. Alum appears best suited to the task of removing P from cranberry pond waters.

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