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Magnesium plant material

Lipid-soluble food grade copper chlorophyll is manufactured similarly by extraction of adequate plant material, followed by replacement of magnesium by copper, and purihcation steps to remove carotenoids, waxes, sterols, oils, and other minor components that are co-extracted. Commercial copper chlorophylls may vary physically, ranging from viscous resins to fluid dilutions in edible oils as well as granulated forms and emulsions standardized with edible vegetable oil. Colors may vary... [Pg.207]

Ward GM and Heeney HB (1960) A collaborative study of methods for the determination of potassium, calcium and magnesium in plant materials. Canad J Plant Sci 40 589-595. [Pg.19]

There are two types of minerals in coal (1) extraneous mineral matter and (2) inherent mineral matter. Extraneous mineral matter consists of materials such as calcium, magnesium, and ferrous carbonates pyrite marcasite clay shale sand and gypsum. Inherent mineral matter represents the inorganic elements combined with organic components of coal that originated from the plant materials from which the coal was formed. [Pg.51]

An official method has been published for the determination of magnesium in plant material [27]. A hydrochloric acid digest of the sample is treated with strontium chloride perchloric acid releasing agent and magnesium is determined by AAS using the 285 nm emission line. See Sect. 7.34.1. [Pg.180]

Ministry of Agriculture, Fisheries and Food (1973) The Analysis of Agricultural Materials - Magnesium in Plant Material, Method 45, Technical Bulletin RB 427, HMSO, London, UK. [Pg.213]

David (D3) determined calcium in plant materials, employing an air-acetylene flame. After wet-ashing of the samples, magnesium and sulfuric acid were added to overcome effects of anions. It was demonstrated that high concentrations of phosphate, aluminum, and silicate were completely controlled. In soil samples David (D5) determined calcimn by extraction widr ammonium chloride, but used strontium and lanthanum... [Pg.42]

Allan (A6) in determining magnesium in plant materials encountered interference from aluminum. The addition of 10% sodium acetate had no eflFect on absorption. David analyzed plants (D2) and soils (D5) and used lanthanum and strontium for the suppression of interferences. [Pg.46]

Allan (A7) during his studies of ashed plant materials also investigated interferences. Using an air-acetylene flame, sodium, potassium, calcium, magnesium, and phosphate had no effect. In the air-coal gas flame, as employed by Elwell and Gidley (E2), recoveries of iron were only 80-90% when the test solutions contained an excess of calcium, copper, aluminum, titanium, and zirconium. With silicon added, iron recovery was 26%. Owing to incomplete vaporization of iron in the flame, sensitivities attained are higher in the air-acetylene flame and lower in the air-coal gas flame. Since iron is subject to oxidation in the flame, fuel-rich flames are preferable. [Pg.50]

The cuprizone method was used for determining copper in plant materials [130], biological samples [12], lead and its alloys [131], aluminium and magnesium alloys [132], platinum alloys [133], cadmium sulphide [134], borate glass [135], and petroleum samples [136]. [Pg.184]

Titan Yellow has been used for determination of magnesium in nickel and its alloys [3], silicate minerals [14,58], carbonate minerals [58], soil extracts [13], plant materials [59], and blood [60]. [Pg.251]

E.A.G. Zagatto, F.J. Krug, H. Bergamin-Filho, S.S. Jorgensen, B.F. Reis, Merging zones in flow injection analysis. Part 2. Determination of calcium, magnesium and potassium in plant material by continuous flow injection atomic absorption and flame emission spectrometry, Anal. Chim. Acta 104 (1979) 279. [Pg.285]

Spectral absorbance and electrochemical detectors, in conjunction with single or dual 1C columns, can also be used for magnesium determination. The sample pretreatments can be ultrafiltration, incineration, or acid extraction. These have proven to be reliable methods for the quantification of magnesium in plant material [106] and in serum and plasma [107]. [Pg.463]

As with all plant materials, potassium is predominant in coffee ash (1.1%), followed by calcium (0.2%) and magnesium (0.2%). The predominant anions are phosphate (0.2%) and sulfate (0.1%). Many other elements are present in trace amounts. [Pg.946]

This digestion is in particular suited for routine work on large series of plant samples followed by automated determinations. It can be applied for the determination of total calcium (Ca), potassium (K), magnesium (Mg), manganese (Mn), nitrogen (N), sodium (Na), phosphorus (P), and zinc (Zn) in plant material. [Pg.7]

This digestion was developed for elemental analysis of plant tissue by means of spectrometric methods (Flame-AES, Flame-AAS, ETA-AAS, ICP-OES, or ICP-MS) only. It can be applied for the determination of total aluminium (Al), arsenic (As), calcium (Ca), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), sodium (Na), nickel (Ni), phosphorus (P), lead (Pb), sulphur (S), antimony (Sb), tin (Sn), vanadium (V) and zinc (Zn) in plant material. [Pg.13]

The total magnesium content of the dried plant material, expressed in mmol/kg Mg, is calculated by ... [Pg.101]

See other pages where Magnesium plant material is mentioned: [Pg.504]    [Pg.318]    [Pg.239]    [Pg.182]    [Pg.967]    [Pg.105]    [Pg.285]    [Pg.115]    [Pg.117]    [Pg.219]    [Pg.229]    [Pg.840]    [Pg.102]    [Pg.63]    [Pg.504]    [Pg.169]    [Pg.17]    [Pg.504]    [Pg.191]    [Pg.302]    [Pg.148]    [Pg.182]    [Pg.459]    [Pg.459]    [Pg.8]    [Pg.27]    [Pg.95]    [Pg.504]    [Pg.237]   
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Magnesium plants

Plant material

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