Manejo de la capacidad de recuperación en el modelo RMM del CERT

Este artículo compara diferentes marcos de trabajo y estándares del manejo de riesgo o relacionados, estableciendo ventajas y desventajas de su implementación; entre ellos, BS 25999, BS 25777, ISO/IEC 27000, COSO-ERM, ISO/IEC 20000, ITIL, Cobit 5, CERT-RMM, NIST SP-37. Describe cuales de los marcos comparados soporta procesos de negocio, procesos de TI, medición de la madurez e integración con otros marcos.

A fully validated method for the determination of arsenic species in rice and infant cereal products

A full validation of inorganic arsenic (iAs), methylarsonic acid (MA), and dimethyl arsinic acid (DMA) in several types of rice and rice-based infant cereals is reported. The analytical method was developed and validated in two laboratories. The extraction of the As species was performed using nitric acid 0.2 % and hydrogen peroxide 1 %, and the coupled system liquid chromatography-inductively coupled plasma-mass spectrometry (LCICP-MS) was used for speciation measurements. Detection limit (DL), quantification limit, linearity, precision, trueness, accuracy, selectivity, as well as expanded uncertainty for iAs, MA, and DMA were established. The certified reference materials (CRMs) (NMIJ 7503a, NCS ZC73008, NIST SRM 1568a) were used to check the accuracy. The method was shown to be satisfactory in two proficiency tests (PTs). The broad applicability of the method is shown from the results of analysis of 29 samples including several types of rice, rice products, and infant cereal products. Total As ranged from 40.1 to 323.7 μg As kg1. From the speciation results, iAs was predominant, and DMA was detected in some samples while MA was not detected in any sample.