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Sensor for detecting acetone in exhalation

A sensor and acetone technology, applied in the field of diabetes diagnosis, can solve the problem of low sensitivity of acetone concentration detection

Inactive Publication Date: 2019-08-27
广州田成环境修复有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) The detection sensitivity of acetone concentrations in the low ppm or sub-ppm range is not high enough to manufacture the device
[0006] 2) Sensors reported in prior art are moisture sensitive and therefore nonselective to acetone in the presence of large amounts of moisture (usually present in exhaled breath)

Method used

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  • Sensor for detecting acetone in exhalation
  • Sensor for detecting acetone in exhalation
  • Sensor for detecting acetone in exhalation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] To prepare a 5.7% Sb by weight 2 o 3 , 1.4% Pt and 92.9% γ-Fe 2 o 3 composition, prepare the following solutions:

[0050] a) 2.424gFe(NO 3 ) 3 .9H 2 O in 250mL distilled water;

[0051] b) 6.25gNH 2 NH 2 .H 2 O (hydrazine) in 250mL distilled water;

[0052] c) 0.0124g anhydrous PtCl 4 In 20 mL of distilled water, in the presence of 2 mL of concentrated HCl, stir continuously at 100°C for 1 hour;

[0053] d) 0.0046gSbCl 3 (Sigma-Aldrich, purity 99%) in 20 mL of distilled water in the presence of 3 mL of concentrated HCl was continuously stirred at 100° C. for 1 hour.

[0054] In a 500 mL beaker, the iron salt solution, the antimony salt solution, and the platinum salt solution were mixed together, and the final volume of the solution was adjusted to 300 mL, followed by stirring for 10 minutes. The solution in the beaker was placed under an ultrasonic wave vibration processor and the dipping length of the probe (about 2 cm in diameter) in the solution was a...

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Abstract

The invention provides a composition for detecting acetone and a preparation method thereof. The composition comprises gamma-iron oxide (gamma-Fe2O3), stibium (Sb) salt and platinum (Pt). A sensor manufactured by using the composition has selectivity for low-concentration acetone in exhalation, ie, a diabetes biomarker, in the presence of high moisture normally present in the exhalation. A semiconductor sensor for detecting diabetes is inexpensive, sturdy and durable, patient-friendly, and, above all, non-invasive.

Description

technical field [0001] The present invention relates to the field of rapid diagnostic methods and compositions. In particular, it relates to a composition suitable for diagnosing diabetes and detecting acetone in exhaled breath and a method for its preparation. The composition of the present invention comprises γ-iron oxide (γ-Fe 2 o 3 ), antimony (Sb) salts and platinum (Pt). Background technique [0002] With the continuous increase of diabetic patients, the threat of diabetes is spreading all over the world. However, early detection of diabetes may reduce the potential risk of this deadly disease. Blood glucose monitoring (fasting plasma glucose and oral glucose tolerance test) is a reliable method for detecting diabetes. However, this method is expensive and, above all, invasive. To circumvent this problem, different non-invasive and minimally invasive techniques have been investigated, such as IR spectroscopy, optical rotation of polarized light, radio wave impeda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/12
CPCG01N27/12
Inventor 王志坚王志强唐志刚
Owner 广州田成环境修复有限公司