Method and device for ketone measurement
First Claim
1. A method for the detection of ketone and aldehyde analytes in a fluid sample comprising:
- (a) reacting said analytes with a hydrazine compound coupled to an H+ ion exchange resin to form a colored reaction product,(b) fluting said reaction product from the ion exchange resin with a solvent, and(c) detecting the presence of a color signal in the eluted material.
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Abstract
The present invention relates to methods and materials for the detection of ketone and aldehyde analytes in fluid samples by means of reacting analyte containing samples with a matrix comprising a hydrazine compound coupled to an H+ ion exchange resin to produce a hydrazone reaction product with a characteristic color. Methods are also provided for ascertaining the fat catabolism effects of a weight loss dietary regimen comprising determining the breath acetone concentration of the subject by means of contacting said breath with a device comprising an H+ ion exchange resin to which a hydrazine compound has been coupled and correlating the breath acetone concentration to a standard reflecting the effect on breath acetone of fixed rates of fat metabolism.
55 Citations
16 Claims
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1. A method for the detection of ketone and aldehyde analytes in a fluid sample comprising:
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(a) reacting said analytes with a hydrazine compound coupled to an H+ ion exchange resin to form a colored reaction product, (b) fluting said reaction product from the ion exchange resin with a solvent, and (c) detecting the presence of a color signal in the eluted material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for the detection of ketone and alkehyde analytes in a fluid sample comprising an H+ ion exchange resin to which a hydrazine compound has been coupled, and an adsorbent material.
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13. A method for ascertaining the fat catabolism effects of a weight loss dietary regimen, said method comprising:
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(a) determining the breath acetone concentration of the subject by (i) contacting said breath with a device comprising an H+ ion exchange resin to which a hydrazine compound has been coupled to form a colored reaction product, (ii) eluting said reaction product from the ion exchange resin with a solvent, and (iii) detecting the presence of a color, and (b) correlating the breath acetone concentration to a standard reflecting the effect on breath acetone of fixed rates of fat catabolism.
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14. A kit for the detection of ketone and aldehyde analytes in a fluid sample comprising:
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(a) an H+ ion exchange resin to which a hydrazine compound has been coupled; (b) a solid adsorbent; (c) solvent means for eluting a reaction product from the H+ ion exchange resin; and (d) means for detecting the presence of a color signal. - View Dependent Claims (15)
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16. A kit for ascertaining the fat catabolism effects of a weight loss dietary regimen comprising:
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(a) means for collecting a fixed volume of breath and contacting it with the solid adsorbent; (b) an H+ ion exchange resin to which 2,4-dinitrophenyl hydrazine has been coupled; (c) a solid adsorbent; (d) means for eluting said reaction (e) means for detecting the presence of a color signal; and (f) a standard reflecting the effect on breath acetone of fixed rates of fat catabolism.
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Specification