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1、1Advances in urinary calculi analysis methodsIncluding kidney stones, urinary tract stones in the lower urinary tract stones of the upper urinary tract stones ureteral stones and bladder stones, urinary tract stones, is one of the most common urological diseases. The urinary calculi population preva
2、lence rate of 1% to 5% easy to relapse after treatment .10 recurrence rate of 50%, and in the prevention and treatment of patients, the recurrence rate can be reduced to 10% to 15% for the composition of the stones effectively guide treatment and prevention of more and more attention 1. component an
3、alysis of urinary tract stones there are many, including chemical analysis, physical analysis, microstructure analysis, and biochemistry and molecular biology techniques analysis, are summarized as follows: The purpose of the method of chemical analysis methods for chemical analysis to fully underst
4、and the complex components of urinary tract stones, the most abundant component from the estimated stones began gradually Analysis Methods for chemical analysis of the chemical composition of urinary tract stones can be 2divided into qualitative and quantitative analysis. 1.1 chemical analysis: comb
5、ining the judgment of appearance of the stones, calculi specimens processed by urinary calculi and the chemical reaction of the corresponding reagent to produce a specific chemical reactants, to determine the stones specimen composition. Classical chemical qualitative analysis the winer drip reactio
6、n and Beren trace analysis, as well as the 1978 domestic Liyong Lan adopted recrystallization method 2. 1.2 The chemical quantitative analysis: stones specimen specific to a substance is measured on the basis of qualitative analysis of the chemical content of the more commonly used methods of analys
7、is EDTA titration analysis, colorimetry, gravimetry, spectrophotometer, flame emission and atomic absorption spectrometry, gas-liquid chromatography, ion exchange method 3. important role in calcium oxalate stone formation in the urinary tract, so the determination of oxalic acid in the urine of the
8、 prevention and 3treatment of urinary tract stones has guidance value. domestic Li Ying wrong a Arsenazo Fading spectrophotometric determination of oxalate in the urine sample, the method is simple, rapid, and also be able to carry out the general conditions of the laboratory 4. Chemical analysis ur
9、inary calculi ingredients advantage of fast, simple, low-cost, but require more stones sample size, you need to destroy the stones body, only determination of a few ingredients, can not accurately determine the crystal structure of the stones, only suitable primary hospital laboratory disadvantaged.
10、 Physical methods of analysis of urinary tract stones by physical analysis methods can be measured not only the crystal components stones informed stones crystal morphology and structure, but also by the method of quantitative or semi-quantitative determination of the specific content of each ingred
11、ient 5 a common method of analysis infrared spectroscopy, emission spectroscopy, X-ray diffraction analysis, thermal analysis. 42.1 Infrared Spectroscopy Infrared absorption spectrum method for the determination of the composition and content of the stones is through the application of infrared spec
12、trophotometric detection stones molecules. Domestic applications Fourier Transform Infrared Spectroscopy (FTIR) 6. Domestic the armed police Hunan Corps Hospital Song Guangqing 7 using infrared spectroscopy analysis of 516 cases of urinary tract stones line qualitative and quantitative: qualitative
13、analysis will The infrared spectra obtained samples with urinary stone composition spectrum library standard spectrum of control, according to the characteristic peak frequency, intensity and peak width to determine stone composition, quantitative analysis using the calibration curve method, after t
14、he establishment of the calibration curve regression equation, according to the results of qualitative analysis to select appropriate curve-line quantitative analysis. Concluded that infrared spectroscopy is an ideal method for qualitative and quantitative analysis of multi-component mixtures of uri
15、nary tract stones. Infrared spectroscopy has many 5advantages: accurate, fast, convenient not only to analyze the crystal components, but also analysis of the non-crystalline ingredients, either analysis of organic compounds, but also analysis of the inorganic compound, and using a small sample, has
16、 become today the primary means of analysis of stone composition. 2.2 emission spectrometry is based is the emission of characteristic lines in the excited state of the analyte atoms return to the ground state when the measured elemental analysis methods use the atomic spontaneous emission process emission spectrum has isotropic emission spectrometry The method can be direct analysis of the solid sample, such as urinary tract stones. to accept the same light s
