目的:探讨初次经皮肺穿刺活检过程中因气胸而活检失败,使用单腔深静脉管抽气后再行活检的安全性和可行性。方法:2017年8月至2021年8月452例患者行CT引导下肺穿刺活检,其中12例因出现气胸而活检失败,使用单腔深静脉管置入抽气并再次行肺...目的:探讨初次经皮肺穿刺活检过程中因气胸而活检失败,使用单腔深静脉管抽气后再行活检的安全性和可行性。方法:2017年8月至2021年8月452例患者行CT引导下肺穿刺活检,其中12例因出现气胸而活检失败,使用单腔深静脉管置入抽气并再次行肺活检。回顾性分析12例患者的病例资料,记录肺内病灶的大小、距离胸膜的距离、病灶在肺叶的位置、有无肺气肿、有无成功获得组织、有无明确的病理结果、有无肺内出血等并发症。结果:12例肺病灶直径为1.5~3.5 cm, 3例距离胸膜较近,平均距离为1.2 cm, 9例距离胸膜较远,平均距离为5.5 cm;8例病灶位于肺下叶,2例位于右肺中叶,2例位于右肺上叶,4例患者有肺气肿;12例患者再次活检后均成功取到组织并有明确的病理结果。活检完成后CT复查有4例出现少量渗出性改变,其中2例少量咯血,均经保守治疗后好转。1例合并肺气肿患者术后1 h出现大量气胸,行胸腔闭式引流后明显缓解。所有患者均未出现胸腔积液或其他严重并发症。结论:初次经皮肺穿刺活检过程中因气胸而活检失败,使用单腔深静脉管抽气后再次行肺活检安全、有效,值得临床推广应用。展开更多
The Cr 6+ in water sample is separated,enriched by low pressure cathodic ion Chromatography and is determined with spectrophotometry.The optimal experimental conditions are also explored.The result is satisfactory in ...The Cr 6+ in water sample is separated,enriched by low pressure cathodic ion Chromatography and is determined with spectrophotometry.The optimal experimental conditions are also explored.The result is satisfactory in that the instruments and equipment used in experiment are ordinary,the manipulation is easy,other cations in water sample don’t interfere in the determination of Cr 6+ and the multiplicity of enrichment may reach 100 Limit concentration being 1.06×10 -4 mg/L,RSD 0.1%,rate of recovery,97.9～103.8.展开更多
This text intends to extract K+ by digestion of sample soil in 005mol/L HCl+00125mol/L H2SO4 to determine its density in the digestion liquid with low pressure ion chromatography.Keep 14m mol/LHNO3 in mo...This text intends to extract K+ by digestion of sample soil in 005mol/L HCl+00125mol/L H2SO4 to determine its density in the digestion liquid with low pressure ion chromatography.Keep 14m mol/LHNO3 in mobility, add 100μL sample digestion liquid, then determine the content of K+ throung conduction test.Applying this method to the determination of K+ in the actual sample soil,the RSD% is 017%,which conforms with the proposed value and shows good relevance.展开更多
Through the extraction of soil sample in 0.5mol/L NaHCO 3,FIA is adopted to measure the density of PO 3- 4 in the extracting solution.According to that ethyl violet-ammonium molybate-OP complex coloring system react a...Through the extraction of soil sample in 0.5mol/L NaHCO 3,FIA is adopted to measure the density of PO 3- 4 in the extracting solution.According to that ethyl violet-ammonium molybate-OP complex coloring system react and generat the blue ternary ion complex,flow path of FIA is designed to make coloring and measuring completed on line.All technical parameters of this flow path have been experimented on in detail and have been optimized.The results show that:the blue ternary ion complex generated after reaction has the maximum absorption at the point of wavelength 430nm,with linear correlation coefficient 0.9997 and RSD less than 0.2%.Results obtained from measuring the actual sample have significant positive correlation with the proposed values.展开更多
文摘目的:探讨初次经皮肺穿刺活检过程中因气胸而活检失败,使用单腔深静脉管抽气后再行活检的安全性和可行性。方法:2017年8月至2021年8月452例患者行CT引导下肺穿刺活检,其中12例因出现气胸而活检失败,使用单腔深静脉管置入抽气并再次行肺活检。回顾性分析12例患者的病例资料,记录肺内病灶的大小、距离胸膜的距离、病灶在肺叶的位置、有无肺气肿、有无成功获得组织、有无明确的病理结果、有无肺内出血等并发症。结果:12例肺病灶直径为1.5~3.5 cm, 3例距离胸膜较近,平均距离为1.2 cm, 9例距离胸膜较远,平均距离为5.5 cm;8例病灶位于肺下叶,2例位于右肺中叶,2例位于右肺上叶,4例患者有肺气肿;12例患者再次活检后均成功取到组织并有明确的病理结果。活检完成后CT复查有4例出现少量渗出性改变,其中2例少量咯血,均经保守治疗后好转。1例合并肺气肿患者术后1 h出现大量气胸,行胸腔闭式引流后明显缓解。所有患者均未出现胸腔积液或其他严重并发症。结论:初次经皮肺穿刺活检过程中因气胸而活检失败,使用单腔深静脉管抽气后再次行肺活检安全、有效,值得临床推广应用。
文摘The Cr 6+ in water sample is separated,enriched by low pressure cathodic ion Chromatography and is determined with spectrophotometry.The optimal experimental conditions are also explored.The result is satisfactory in that the instruments and equipment used in experiment are ordinary,the manipulation is easy,other cations in water sample don’t interfere in the determination of Cr 6+ and the multiplicity of enrichment may reach 100 Limit concentration being 1.06×10 -4 mg/L,RSD 0.1%,rate of recovery,97.9～103.8.
文摘This text intends to extract K+ by digestion of sample soil in 005mol/L HCl+00125mol/L H2SO4 to determine its density in the digestion liquid with low pressure ion chromatography.Keep 14m mol/LHNO3 in mobility, add 100μL sample digestion liquid, then determine the content of K+ throung conduction test.Applying this method to the determination of K+ in the actual sample soil,the RSD% is 017%,which conforms with the proposed value and shows good relevance.
文摘Through the extraction of soil sample in 0.5mol/L NaHCO 3,FIA is adopted to measure the density of PO 3- 4 in the extracting solution.According to that ethyl violet-ammonium molybate-OP complex coloring system react and generat the blue ternary ion complex,flow path of FIA is designed to make coloring and measuring completed on line.All technical parameters of this flow path have been experimented on in detail and have been optimized.The results show that:the blue ternary ion complex generated after reaction has the maximum absorption at the point of wavelength 430nm,with linear correlation coefficient 0.9997 and RSD less than 0.2%.Results obtained from measuring the actual sample have significant positive correlation with the proposed values.
