DSD酸系列中间体下游产品的开发应用及展望

DSD酸及合成DSD酸过程中的中间过渡产物NTS酸、DNS酸和DNS酸单还原的产物ANSD酸,这四种化合物统称DSD酸系列中间体,它们是重要的有机化工原料。本文全面系统地介绍了DSD酸系列中间体下游产品的开发应用现状,它们可用于荧光增白剂、直接染料、酸性染料和活性染料的合成,本文介绍了它们的合成原理,列出了主要品种的化学结构式、C.I.索引号、CAS登记号、国内外主要商品名称,展望了发展前景。     

植酸、植酸钙和肌醇

本文综述了植酸、植酸钙和肌醇的性质、用途、生产工艺,存在的问题和我们的对策。     

聚天冬氨酸的阻垢性能的综述

本文从聚天冬氨酸(PASP)的阻垢机理入手,介绍了影响聚天冬氨酸阻垢性能的因素,并对PASP的发展提出了相关建议.     

HPLC 法测定豆腐黄浆水中有机酸质量浓度

建立利用反相高效液相色谱法同时快速的测定豆腐黄浆水中柠檬酸、苹果酸、酒石酸、草酸、富马酸、琥珀酸6种有机酸的方法．采用Agilent Eclipse XDB-C18色谱柱;紫外检测器,检测波长为210 nm;流动相为甲醇∶0．01 mol/L KH2PO4-H3PO4缓冲溶液（3∶97,pH值为2．85）;流速为0．8 mL/min;柱温为25℃;进样量为20μL．在最佳色谱条件下,柠檬酸、苹果酸、草酸等6种有机酸能同时、快速的分离．线性相关系数r＞0．9824,检出限为0．5558～1．2948μg/mL,相对标准偏差0．13％～4．2％,该方法具有分析速度快,重现性好,精密度高,定量准确等特点．适用于豆腐黄浆水中有机酸的定量分析,对黄浆水开发利用有重要意义．     

用ICP-AES技术测定废水中重金属元素含量

我国对排放废水中重金属含量实行严格控制，为了做到安全、准确、快速、有效地实施节能减排，文章研究了将工业废水加硝酸消解后，用电感耦合等离子体发射光谱仪对水中Cd、Ni、Cu、Zn、Cr、Pb元素含量进行测定的分析技术。该方法具有检出限低、准确度及精密度高、分析速度快、线性范围宽等优点。     

Renal function changes and NHS resource use in breast cancer patients with metastatic bone disease treated with IV zoledronic acid or oral ibandronic acid: a four-centre non-interventional study

Abstract

Aims: To describe renal function monitoring practice in patients with metastatic bone disease (MBD) treated with IV zoledronic acid (ZA) and oral ibandronic acid (IA), the management pathways and NHS hospital resources used.

Methods: Medical records of 189 patients; IA (91), ZA (98) with primary breast cancer and MBD were reviewed, and data collected on renal monitoring and hospital visits during bisphosphonate therapy. Time and motion review of resources to administer the bisphosphonates was also conducted.

Results: Only 30% of patients given ZA and no patient given IA had baseline creatinine clearance (CrCl) recorded. Calculated baseline CrCl suggested impaired renal function in 33% ZA and 29% IA patients. Dose reductions were not made correctly in 29 ZA and 2 IA patients whose monitoring suggested it. ZA patients made more clinic and day care attendances than IA-treated patients, at twice the cost. Staff activity and patient time per visit was higher with ZA than IA.

Conclusion: Although limited by retrospective design, these results demonstrate that in many patients, CrCl is not calculated before or during treatment with bisphosphonates. Renal function deteriorated in many patients during therapy. In view of these effects, practice should be reviewed to ensure appropriate dosing.     

从米糠油加工的废弃物中分离提取含量≥98%天然阿魏酸新工艺

文章介绍了从米糠油加工的废弃物中分离提取含量≥98%天然阿魏酸新工艺的技术原理、主要技术指标、技术创新点、关键技术与工艺,以及用户使用效果和项目鉴定结论。     

高硫高酸原油加工过程对设备腐蚀现象的研究

高硫高酸原油在加工过程中会对生产设备造成腐蚀，而且出现的腐蚀种类多样。只有认识和掌握腐蚀产生的条件和机理才能避免或减少腐蚀的产生。文章详细介绍了氯化物腐蚀、硫化物腐蚀、环烷酸腐蚀产生的条件和机理。     

新疆地区特色植物油脂的营养分析和发展前景

新疆特产多,特色油料资源丰富,各种特色油脂不饱和脂肪酸成分含量高,并含有维生素、人体必需氨基酸等营养成分,各种油脂的搭配食用,将有利于人体健康。目前,新疆油脂市场品种少,应抓住跨越式发展机遇,加快发展力度,利用新疆本地资源,为广大消费者提供更具营养价值的新疆特色油脂。     

乙醛酸的生产应用及市场前景分析

本文介绍了国内外乙醛酸的生产、应用概况,并对乙醛酸的市场前景作了分析.