Nos últimos anos observou-se um interesse crescente na determinação dos níveis de nitrato em produtos alimentícios, essencialmente devido ao potencial redução nitrito, que é conhecido por ter efeitos adversos saúde humana e animal. O intermediário no ciclo do nitrogênio sua alta concentração água indicador baixa qualidade (Wang et al.). A direta águas realizada região ultravioleta meio ácido co...

Introduction. The test for the induction of reverse gene mutations (Ames test, OECD* guideline No. 471) is one most popular methods assessing mutagenicity due to its ease execution and ability detect up 70-80% substances with carcinogenic activity. experimental protocol requires a minimum amount substance standard microbiological laboratory equipment. To obtain primary data, several days from s...

The value of laboratory medicine is closely related to the impact of its laboratory services on patient outcome. The perception of patients and medical doctors regarding medical laboratory services is that diagnostic laboratories deliver accurate test results, which guarantee an unequivocal and similar risk classification, diagnosis, treatment and patient outcome across hospitals. External qual...

This report describes the additional certification of the mass concentration of beta-2-microglobulin (B2M) in ERM-DA470k/IFCC, a human serum material. The material was released in 2008 and was certified for the mass concentration of 12 proteins in human serum. The material is now additionally certified for B2M in accordance with ISO Guide 34:2009. A full description of the processing steps used...

Method validation is the process used to confirm that the analytical procedure employed for a specific test is suitable for its intended use. Results from method validation can be used to judge the quality, reliability and consistency of analytical results; it is an integral part of any good analytical practice. It is the process of defining an analytical requirement, and confirms that the meth...

Since its commissioning in 2004, the UC San Diego Large High-Performance Outdoor Shake Table (LHPOST) has enabled seismic testing of large structural, geostructural and soil-foundation-structural systems, with ability to accurately reproduce far- near-field ground motions. Thirty-four (34) landmark projects were conducted on LHPOST as a national shared-use equipment facility part National Scien...

Mục tiêu: Nghiên cứu phân lập 14-deoxy-11,12-didehydroandrographolid làm chất đối chiếu từ cây Xuyên tâm liên (Andrographis paniculata (Burm.f.) Nees). Đối tượng và phương pháp: nghiên là thu hái tại Cao Lãnh, tỉnh Đồng Tháp vào tháng 01.2015. Mẫu đã được xác định tên khoa học Bộ môn Thực vật, Khoa Dược – Đại Y Thành Phố Hồ Chí Minh Andrographis Nees, họ Ô rô (Acanthaceae) lưu giữ Kiểm nghiệm Đ...