消肿生肌膏联合藻酸钙钠盐敷料治疗下肢静脉溃疡的疗效观察

【目的】探讨下肢静脉溃疡治疗过程中创面红期(肉芽组织生长期)时采用消肿生肌膏联合藻酸钙钠盐敷料处理对疗效的影响。【方法】将64例下肢静脉溃疡患者随机分为试验组和对照组,每组各32例。试验组在创面清洗消毒后,给予涂抹一层消肿生肌膏,并覆盖藻酸钙钠盐敷料+弹力绷带加压包扎处理,对照组在创面清洗消毒后,给予藻酸钙钠盐敷料覆盖+弹力绷带加压包扎处理。分别于治疗3、7、14、21 d后计算2组患者的创面缩小率及换药时疼痛评分,并于干预治疗21 d后计算2组患者的治愈率及创面愈合时间。【结果】(1)干预治疗3 d和7 d后,试验组的伤口创面缩小率明显大于对照组,换药时疼痛评分明显小于对照组(P<0.05或P<0.01);随着干预治疗时间的延长,在14 d和21 d换药时,2组患者的伤口创面缩小率及换药时疼痛评分比较,差异均无统计学意义(P>0.05)。(2)干预治疗21 d后,2组患者的治愈率比较,差异无统计学意义(P>0.05);而试验组的治愈时间较对照组明显缩短,差异有统计学意义(P<0.01)。【结论】消肿生肌膏在下肢静脉溃疡创面红期时介入可有效促进新生肉芽及上皮组织的生长,减轻患者的疼痛,加速创面的愈合。

藻酸钙钠盐敷料在2型糖尿病患者下肢血管病变伤口的应用

目的观察藻酸钙钠盐敷料对2型糖尿病患者下肢血管病变伤口的疗效。方法 2型糖尿病下肢血管病变伤口患者120例,随机分为治疗组和对照组各60例,在全身系统治疗的基础上,治疗组应用藻酸钙钠盐敷料,对照组选用单纯常规敷料换药。结果对照组和治疗组创面止血时间分别为(3.35±1.52),(2.98±1.23)min;创面愈合时间分别为(32.73±5.21),(27.57±4.61)d(P<0.05)。治疗组疗效明显优于对照组。结论藻酸钙钠盐敷料能明显促进2型糖尿病患者下肢血管病变伤口愈合。

藻酸钙钠盐敷料在重症寻常型天疱疮病人创面护理中的应用

[目的]观察藻酸钙钠盐敷料运用于重症寻常型天疱疮病人创面护理中的效果。[方法]对13例重症寻常型天疱疮创面进行整体评估,采用藻酸钙钠盐敷料处理创面。[结果]采用藻酸钙钠盐敷料处理创面,1周创面愈合2例,2周创面愈合10例,3周创面愈合1例。[结论]藻酸钙钠盐敷料用于重症寻常型天疱疮病人的创面护理能加快创面修复、缩短愈合时间、减轻病人痛苦。

乙二胺四乙酸钙钠盐制备工艺路线的探讨

乙二胺四乙酸钙钠盐是一种良好的食品抗氧化剂,同时也是一种解毒剂和络合剂。本文着重研究了以天然贝壳、氢氧化钙和EDTA为原料来制备该产品的生产流程和工艺条件。

藻酸钙钠盐敷料和金因肽联合治疗老年Ⅱ、Ⅲ期压疮的疗效观察

目的观察藻酸钙钠盐敷料和金因肽联合治疗Ⅱ、Ⅲ期老年压疮的效果。方法将39例压疮患者随机分为实验组与对照组,分别为21例与18例,实验组采用藻酸钙钠盐敷料和金因肽联合进行治疗,对照组单独采用藻酸钙钠盐敷料进行治疗;比较两组治疗有效率及平均治愈时间。结果实验组治疗有效率明显高于对照组,平均愈合时间明显短于对照组(均P<0.01)。结论使用藻酸钙钠盐敷料和金因肽联合治疗Ⅱ、Ⅲ期老年压疮,明显优于单一使用藻酸钙钠盐敷料治疗,具有治愈率高、伤口愈合快等优点。

食品抗氧化剂EDTA钙钠盐制备工艺新探

ＥＤＴＡ钙钠盐是一种良好的食品抗氧化剂，同时也是一种解毒剂和络合剂。本文着重研究了以天然贝壳和ＥＤＴＡ为原料制备产品的生产流程、工艺条件和在食品中的抗氧化效果。

融雪剂研究

对镁钙不同配比的环保型融雪剂和不同钠钙配比的传统融雪剂的融冰效果进行了比较。结果表明:当镁钙摩尔比为8∶2时环保型融雪剂融冰效果最好,当钠钙摩尔比为2∶8时传统融雪剂融冰效果最好,并对实验数据进行了处理和分析,对融雪剂的改进提出了自己的想法和思路。

Cyclic metallurgical process for extracting Ⅴ and Cr from vanadium slag: Part Ⅰ. Separation and recovery of Ⅴ from chromium-containing vanadate solution

The separation and recovery of V from chromium-containing vanadate solution were investigated by a cyclic metallurgical process including selective precipitation of vanadium,vanadium leaching and preparation of vanadium pentoxide.By adding Ca(OH)_(2) and ball milling,not only the V in the solution can be selectively precipitated,but also the leaching kinetics of the precipitate is significantly improved.The precipitation efficiency of V is 99.59%by adding Ca(OH)_(2) according to Ca/V molar ratio of 1.75:1 into chromium-containing vanadate solution and ball milling for 60 min at room temperature,while the content of Cr in the precipitate is 0.04%.The leaching rate of V reaches 99.35%by adding NaHCO_(3) into water according to NaHCO_(3)/V molar ratio of 2.74:1 to leach V from the precipitate with L/S ratio of 4:1 mL/g and stirring for 60 min at room temperature.The crystals of NH_(4)VO_(3) are obtained by adjusting the leaching solution pH to be 8.0 with CO2 and then adding NH_(4)HCO_(3) according to NH_(4)HCO_(3)/NaVO_(3) molar ratio of 1:1 and stirring for 8 h at room temperature.After filtration,the crystallized solution containing ammonia is reused to leach the precipitate of calcium vanadates,and the leaching efficiency of V is>99%after stirring for 1 h at room temperature.Finally,the product of V_(2)O_(5) with purity of 99.6%is obtained by calcining the crystals at 560℃ for 2 h.

Preliminary Study on a Novel Process for Manufacturing Soda Ash from Sodium Sulfate

The purpose of this work is to find a new way for utilizing the rich sodium sulfate resource to produce soda ash. A novel process is proposed which uses aqueous dichromate solution as working medium through decomposition of calcium carbonate in aqueous sodium dichromate, complex decomposition of aqueous sodium sulfate and calcium chromate, regeneration of sodium dichromate and production of sodium bicarbonate from carbonation of aqueous sodium chromate solution, processing and utilization of byproduct calcium sulfate, and production of sodium carbonate from sodium bicarbonate. The process has the features of less corrosion and pollution and low energy consumption.

OraRez~ MS在义齿粘合剂中的应用

2013年中国老年人口已超2亿,使用义齿的老年人数越来越多,在长期使用义齿的过程中,常常会造成义齿和牙龈的不贴合,从而导致进食困难、说话含糊不清等问题。义齿粘合剂能够使义齿和牙龈更加稳固贴合并且降低义齿对牙龈的压迫。PVM/MA钙钠盐具有极高的粘合性、良好的生物相容性、无毒无刺激性以及粘合持久性,是优良的义齿粘合剂原材料。以新开源产品OraRezMS和CMC为主要原料制备义齿粘合剂,制得与国外市售义齿粘合剂粘合力相当的产品,具有重要的使用价值。

自制黄蝎膏外涂治疗下肢静脉性溃疡效果观察

目的观察自制黄蝎膏外涂治疗下肢静脉性溃疡的效果。方法2018年2—12月该院收治的下肢静脉性溃疡患者62例,随机分为观察组与对照组各31例。在创面消毒清创后,观察组给予自制黄蝎膏外涂,对照组予藻酸钙钠盐敷料覆盖,之后两组均用弹力绷带加压包扎处理,比较两组疗效。结果观察组治愈率(74.2%)明显高于对照组(41.9%),治愈时间短于对照组,差异有统计学意义(P<0.05)。结论采用自制黄蝎膏外涂治疗下肢静脉性溃疡效果优于藻酸盐敷料,能有效提高疗效,缩短治愈时间。

Effects of temperature and sodium carboxylate additives on mineralization of calcium oxalate in silica gel systems

The effects of temperature and multifunctional sodium carboxylate additives on the phase composition and morphology of calcium oxalate (CaOxa) crystals grown in silica gel system were systematically investigated using scanning electron microscopy (SEM), powder X-ray diffraction (XRD), and Fourier-transform infrared spectra (FT-IR). The sodium carboxylates investigated include: monocarboxylate sodium acetate (NaAc), disodium tartrate (Na2tart), trisodium citrate (Na3cit), and the disodium salt of ethylenediaminetetraacetic acid (Na2edta). The temperature range was from 7°C to 67°C. The crystallization temperature affects the phase compositions, the growth rate, and the morphology of CaOxa. First, the logarithm of the percentage of calcium oxalate dihydrate (COD) formed at a certain temperature (T) is proportional to the reciprocal of temperature (1/T). Second, the weight of CaOxa crystals decreases as decreasing the temperature. At a given temperature, the ability of the sodium carboxylates to induce COD follows the order: Na2edta Na3cit Na2tart NaAc. Third, the multicarboxylates can decrease the surface area of calcium oxalate monohydrate (COM). It makes the edges and tips of COM crystals blunt and oval. All the three changes, an increase of the content of COD, a decrease of the weight of CaOxa crystals, and a decrease of the surface area of COM crystals, can inhibit the formation of CaOxa stones. These results support the clinical use of citrates and may be helpful in elucidating the mechanisms of the formation of CaOxa calculus. Keywords calcium oxalate - sodium carboxylate - gel - urinary calculi - crystallization - biomineralization

两种不同换药方法治疗Ⅱ期压疮的效果观察

目的 ：比较Ⅱ期压疮患者两种不同换药方法的效果。方法：将68例Ⅱ期压疮患者68处Ⅱ期压疮,随机分为对照组和观察组,对照组34例常规采用百多邦加无菌纱布换药,观察组34例Ⅱ期压疮予美宝湿润烧伤膏联合藻酸钙钠盐敷料及多爱肤标准敷料换药,观察两组患者创面愈合情况。结果：观察组疗效优于对照组,观察组患者创面平均愈合时间短于对照组,差异有统计学意义（P〈0.05）。结论：美宝湿润烧伤膏联合藻酸钙钠盐敷料及多爱肤标准敷料换药治疗Ⅱ期压疮,具有治愈时间短、操作简便等优点,可在临床上推广应用。