A comparison of X‐ray fluorescence spectrometry and chemical methods for determining sulphur in plant material

A - Papers appearing in refereed journals

Bolton, J., Brown, G., Pruden, G. and Williams, C. 1973. A comparison of X‐ray fluorescence spectrometry and chemical methods for determining sulphur in plant material. Journal of the Science of Food and Agriculture. 24, pp. 577-563. https://doi.org/10.1002/jsfa.2740240509

Authors	Bolton, J., Brown, G., Pruden, G. and Williams, C.
Abstract	A rapid method for determining total S in plants by X‐ray fluorescence spectro‐metric analysis of ground pelletised plant material is compared with chemical methods using titrimetric, flame photometric and turbidimetric methods of sulphate determination. Errors in the chemical methods were caused by incomplete oxidation of organic sulphur and by non‐reproducibility of the turbidimetric determination of sulphate. A method incorporating the oxidation of the sample with HNO3 and Mg(NO3)2 and titration of the reduced sulphate by mercuric acetate gave recoveries accurate to a mean of 1% when determining the sulphur content of sulphur compounds. RESP-6757
Year of Publication	1973
Journal	Journal of the Science of Food and Agriculture
Journal citation	24, pp. 577-563
Digital Object Identifier (DOI)	https://doi.org/10.1002/jsfa.2740240509
Open access	Published as non-open access
Output status	Published
Publisher	Wiley
ISSN	0022-5142

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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A simple diffractometer heating stage

A - Papers appearing in refereed journals

Brown, G., Edwards, C. A., Ormerod, E. C. and Weir, A. H. 1972. A simple diffractometer heating stage. Clay minerals. 9, pp. 407-414.

Long-term Liming Experiments at Rothamsted and Woburn

A - Papers appearing in refereed journals

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The spectrophotometric determination of the purity of commercial dithizone and the purification of small amounts of the reagent by chromatography

A - Papers appearing in refereed journals

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Uranium content of peaty soils rich in molybdenum and selenium from Co. Limerick, Eire

A - Papers appearing in refereed journals

Williams, C. and Brown, G. 1971. Uranium content of peaty soils rich in molybdenum and selenium from Co. Limerick, Eire. Geoderma. 6 (3), pp. 223-225. https://doi.org/10.1016/0016-7061(71)90065-6

The structure, composition and origin of the subcrystalline layer in some species of the genus Heterodera

A - Papers appearing in refereed journals

Brown, G., Callow, R. K., Green, C. D., Shepherd, A. M., Williams, T. D., Jones, F. G. W. and Rayner, J. H. 1971. The structure, composition and origin of the subcrystalline layer in some species of the genus Heterodera. Nematologica. 17 (4), pp. 591-599.

Bromine in wheat grown on soil fumigated with methyl bromide

A - Papers appearing in refereed journals

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Quantity‐intensity relationships for labile sodium in field soils

A - Papers appearing in refereed journals

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A - Papers appearing in refereed journals

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Controlling soil pH with different N-fertilizers in experiments with ryegrass in pots

A - Papers appearing in refereed journals

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The chloride balance in a fertiliser experiment on sandy soil

A - Papers appearing in refereed journals

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Lower limits of molecular weights of compounds excluded from sephadex G-25 eluted with aqueous acetone mixtures : Application of the results to the separation of the components of tannic acid

A - Papers appearing in refereed journals

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Cation exchange properties of micsas III Release of potassium sorbed by potassium depleted micas

A - Papers appearing in refereed journals

Brown, G. and Newman, A. C. D. 1970. Cation exchange properties of micsas III Release of potassium sorbed by potassium depleted micas. Clay minerals. 8, p. 273.

The distribution of sulphur in the mud of Lake Victoria

A - Papers appearing in refereed journals

Bloomfield, C., Brown, G. and Catt, J. A. 1970. The distribution of sulphur in the mud of Lake Victoria. Plant and Soil. 33 (1), pp. 479-481. https://doi.org/10.1007/BF01378237

Sulphur as a nutrient for Sitka spruce (Picea sitchensis) seedlings and radish (Raphanus sativus) grown on a sandy podzol in England

A - Papers appearing in refereed journals

Bolton, J. and Benzian, B. 1970. Sulphur as a nutrient for Sitka spruce (Picea sitchensis) seedlings and radish (Raphanus sativus) grown on a sandy podzol in England. The Journal of Agricultural Science. 74 (4), pp. 501-504. https://doi.org/10.1017/S0021859600017615

The effect of soil pH on potassium intensity and release of non-exchangeable potassium to ryegrass

A - Papers appearing in refereed journals

Islam, A. and Bolton, J. 1970. The effect of soil pH on potassium intensity and release of non-exchangeable potassium to ryegrass. The Journal of Agricultural Science. 75 (3), pp. 571-576. https://doi.org/10.1017/S0021859600025259

A scheme of semi-micro analysis for the major elements in clay minerals, based on modifications to conventional methods of silicate analysis

A - Papers appearing in refereed journals

Pruden, G. and King, H. G. C. 1969. A scheme of semi-micro analysis for the major elements in clay minerals, based on modifications to conventional methods of silicate analysis. Clay minerals. 8 (1), pp. 1-13. https://doi.org/10.1180/claymin.1969.008.1.01

The determination of sulphur dioxide with rosaniline dyes

A - Papers appearing in refereed journals

King, H. G. C. and Pruden, G. 1969. The determination of sulphur dioxide with rosaniline dyes. Analyst. 94 (1114), pp. 43-48. https://doi.org/10.1039/AN9699400043

The colorimetric determination of calcium in silicate minerals

A - Papers appearing in refereed journals

King, H. G. C. and Pruden, G. 1969. The colorimetric determination of calcium in silicate minerals. Analyst. 94 (1114), pp. 39-42. https://doi.org/10.1039/AN9699400039

Zeolites of the elinoptilolite–heulandite type in sediments of South-East England

A - Papers appearing in refereed journals

Brown, G., Catt, J. A. and Weir, A. H. 1969. Zeolites of the elinoptilolite–heulandite type in sediments of South-East England. Mineralogical Magazine. 37 (288), pp. 480-488. https://doi.org/10.1180/minmag.1969.037.288.08

Thin windows for flow proportional counters in x-ray fluorescence spectrometers

A - Papers appearing in refereed journals

Brown, G. and Kanaris-Sotiriou, R. 1969. Thin windows for flow proportional counters in x-ray fluorescence spectrometers. Journal of Physics E: Scientific Instruments. 2 (6), pp. 551-552. https://doi.org/10.1088/0022-3735/2/6/429

Partial silicification of chalk fossils from the Chilterns

A - Papers appearing in refereed journals

Brown, G., Catt, J. A., Hollyer, S. E. and Ollier, C. D. 1969. Partial silicification of chalk fossils from the Chilterns. Geological Magazine. 106 (6), pp. 583-586. https://doi.org/10.1017/S0016756800059343

The diminution of sulphur contamination of powder specimens in X-ray fluorescence analysis

A - Papers appearing in refereed journals

Kanaris-Sotiriou, R. and Brown, G. 1969. The diminution of sulphur contamination of powder specimens in X-ray fluorescence analysis. Analyst. 94 (1122), pp. 705-832. https://doi.org/10.1039/AN9699400780

The determination of sulphur in soils by X-ray fluorescence analysis

A - Papers appearing in refereed journals

Brown, G. and Kanaris-Sotiriou, R. 1969. The determination of sulphur in soils by X-ray fluorescence analysis. Analyst. 94 (1122), pp. 782-786. https://doi.org/10.1039/AN9699400782

Delayed Exchange of Potassium from some Edges of Mica Flakes

A - Papers appearing in refereed journals

Newman, A. C. D. and Brown, G. 1969. Delayed Exchange of Potassium from some Edges of Mica Flakes. Nature. 223 (5202), pp. 175-176. https://doi.org/10.1038/223175a0

The effect of organic matter on the determination of iron (II) in soils and rocks

A - Papers appearing in refereed journals

Pruden, G. and Bloomfield, C. 1969. The effect of organic matter on the determination of iron (II) in soils and rocks. Analyst. 94 (1121), pp. 688-689. https://doi.org/10.1039/AN9699400688

Nutrition experiments in forest nurseries

G - Articles in popular magazines and other technical publications

Benzian, B., Bolton, J. and Freeman, S. C. R. 1969. Nutrition experiments in forest nurseries. Report on Forest Research. 1968/69, pp. 139-141.

Soluble and slow-release PK-fertilizers for seedlings and transplants of Picea sitchensis and Picea abies in two English nurseries

A - Papers appearing in refereed journals

Benzian, B., Bolton, J. and Mattingly, G. E. G. 1969. Soluble and slow-release PK-fertilizers for seedlings and transplants of Picea sitchensis and Picea abies in two English nurseries. Plant and Soil. 31 (2), pp. 238-256. https://doi.org/10.1007/BF01373568

The purification of commercial Alizarin Red S for the determination of aluminium in silicate minerals

A - Papers appearing in refereed journals

King, H. G. C. and Pruden, G. 1968. The purification of commercial Alizarin Red S for the determination of aluminium in silicate minerals. Analyst. 93 (1110), pp. 601-605. https://doi.org/10.1039/AN9689300601

Leaching of fertilizers applied to a latosol in lysimeters

A - Papers appearing in refereed journals

Bolton, J. 1968. Leaching of fertilizers applied to a latosol in lysimeters. Journal of Rubber Research. 20, pp. 274-284.

The effects of potassium and magnesium fertilizers on yield and composition of successive crops of ryegrass, clover, sugar beet, potatoes, kale and barley on sandy soil at Woburn

A - Papers appearing in refereed journals

Bolton, J. and Penny, A. 1968. The effects of potassium and magnesium fertilizers on yield and composition of successive crops of ryegrass, clover, sugar beet, potatoes, kale and barley on sandy soil at Woburn. Journal of the Science of Food and Agriculture. 70 (3), pp. 303-311. https://doi.org/10.1017/S0021859600012624

Nutrition experiments on forest nurseries

G - Articles in popular magazines and other technical publications

Benzian, B., Bolton, J. and Mattingly, G. E. G. 1967. Nutrition experiments on forest nurseries. Report on Forest Research. pp. 133-134.

The component of commercial Titan yellow most reactive towards magnesium: its isolation and use in determining magnesium in silicate minerals

A - Papers appearing in refereed journals

King, H. G. C. and Pruden, G. 1967. The component of commercial Titan yellow most reactive towards magnesium: its isolation and use in determining magnesium in silicate minerals . Analyst. 92 (1091), pp. 83-90. https://doi.org/10.1039/AN9679200083

The synthesis of the active component of commercial Titan yellow for use in the determination of magnesium

A - Papers appearing in refereed journals

King, H. G. C., Pruden, G. and Janes, N. F. 1967. The synthesis of the active component of commercial Titan yellow for use in the determination of magnesium. Analyst. 92 (1100), pp. 695-697. https://doi.org/10.1039/AN9679200695

Mixed Magnesium-Aluminium hydroxides. II. Structure and structural chemistry of synthetic hydroxycarbonates and related minerals and compounds

A - Papers appearing in refereed journals

Brown, G. and Gastuche, M. 1967. Mixed Magnesium-Aluminium hydroxides. II. Structure and structural chemistry of synthetic hydroxycarbonates and related minerals and compounds. Clay minerals. 7 (2), pp. 193-201. https://doi.org/10.1180/claymin.1967.007.2.06

Mixed magnesium-aluminiun hydroxides. I. Preparation and characterization of compounds formed in dialysed systems

A - Papers appearing in refereed journals

Gastuche, M. C., Brown, G. and Mortland, M. 1967. Mixed magnesium-aluminiun hydroxides. I. Preparation and characterization of compounds formed in dialysed systems. Clay minerals. 7 (2), pp. 177-192. https://doi.org/10.1180/claymin.1967.007.2.05

Exchange Equilibria of Sodium on Some British Soils

A - Papers appearing in refereed journals

Tinker, P. B. and Bolton, J. 1966. Exchange Equilibria of Sodium on Some British Soils. Nature. 2`2 (5061), p. 548. https://doi.org/10.1038/212548a0

Nutrition experiments in forest nurseries

A - Papers appearing in refereed journals

Benzian, B., Bolton, J., Coulter, J. K. and Mattingly, G. E. G. 1966. Nutrition experiments in forest nurseries. Report on Forest Research. pp. 99-102.

Chemical changes during the alteration of micas

A - Papers appearing in refereed journals

Newman, A. C. D. and Brown, G. 1966. Chemical changes during the alteration of micas. Clay minerals. 6, pp. 297-310.

Significance of recent structure determinations of layer silicates for clay studies

A - Papers appearing in refereed journals

Brown, G. 1965. Significance of recent structure determinations of layer silicates for clay studies. Clay minerals. 6 (2), pp. 73-82. https://doi.org/10.1180/claymin.1965.006.2.01

Nutrition experiments in forest nurseries: slow-release fertilizers for conifer seedlings

G - Articles in popular magazines and other technical publications

Benzian, B., Bolton, J. and Mattingly, G. E. G. 1965. Nutrition experiments in forest nurseries: slow-release fertilizers for conifer seedlings. Report on Forest Research. 1965/66, pp. 88-89.

Structure of pyrophyllite

A - Papers appearing in refereed journals

Rayner, J. H. and Brown, G. 1964. Structure of pyrophyllite. Clays and Clay Minerals. 13 (1), pp. 73-84. https://doi.org/10.1346/CCMN.1964.0130108

The identity of rectorite and allevardite

A - Papers appearing in refereed journals

Brown, G. and Weir, A. H. 1963. The identity of rectorite and allevardite. Proceedings - International Clay Conference.

A structural study of iddingsite from New South Wales, Australia

A - Papers appearing in refereed journals

Brown, G. and Stephen, I. 1959. A structural study of iddingsite from New South Wales, Australia. American Mineralogist. 44 (3-4), pp. 251-260.

Expanding-lattice minerals from Shropshire

A - Papers appearing in refereed journals

Brown, G. and Stephen, I. 1959. Expanding-lattice minerals from Shropshire. Mineralogical Magazine and Journal of the Mineralogical Society. 32 (246), pp. 251-253. https://doi.org/10.1180/minmag.1959.032.246.08

The origin and development of brown earths on clay-with-flints and coombe deposits

A - Papers appearing in refereed journals

Avery, B. W., Stephen, I., Brown, G. and Yaalon, D. H. 1959. The origin and development of brown earths on clay-with-flints and coombe deposits. Journal of Soil Science. 10 (2), pp. 177-195. https://doi.org/10.1111/j.1365-2389.1959.tb02341.x

The determination of iron(II) sulphide in soil in the presence of iron(III) oxide

A - Papers appearing in refereed journals

Pruden, G. and Bloomfield, C. 1958. The determination of iron(II) sulphide in soil in the presence of iron(III) oxide. Analyst. 93 (1109), pp. 532-534. https://doi.org/10.1039/AN9689300532

Moderately low-angle measurements with a 9.0 cm powder camera

A - Papers appearing in refereed journals

Brown, G. and Dibley, G. C. 1956. Moderately low-angle measurements with a 9.0 cm powder camera. Clay minerals bulletin. 3 (15), pp. 46-47. https://doi.org/10.1180/claymin.1956.003.15.14

An extrusion method for bonded powder specimens

A - Papers appearing in refereed journals

Brown, G., Dibley, G. C. and Farrow, R. 1956. An extrusion method for bonded powder specimens. Clay minerals bulletin. 3 (15), pp. 19-21. https://doi.org/10.1180/claymin.1956.003.15.07

Collophane from the Chalk

A - Papers appearing in refereed journals

Brown, G. and Ollier, C. D. 1956. Collophane from the Chalk. Mineralogical magazine and journal of the Mineralogical Society . 31 (235), pp. 339-343. https://doi.org/10.1180/minmag.1956.031.235.10

The effect of isomorphous substitutions on the intensities of (001) reflections of mica-and chlorite-type structures

A - Papers appearing in refereed journals

Brown, G. 1955. The effect of isomorphous substitutions on the intensities of (001) reflections of mica-and chlorite-type structures. Mineralogical Magazine and Journal of the Mineralogical Society. 30 (229), pp. 657-665. https://doi.org/10.1180/minmag.1955.030.229.06

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