Volume-optional and low-memory (VOLM) chamber for laser ablation-ICP-MS: application to fiber analyses

Autor:	Zhaochu Hu, Haihong Cheng, Yongsheng Liu, Shenghong Hu, Honglin Yuan
Rok vydání:	2007
Předmět:	Standard cell Laser ablation Materials science business.industry medicine.medical_treatment Analytical chemistry Ablation Laser Analytical Chemistry law.invention Cylinder (engine) Optics Volume (thermodynamics) law medicine Tube (fluid conveyance) business Sensitivity (electronics) Spectroscopy
Zdroj:	Journal of Analytical Atomic Spectrometry. 22:582
ISSN:	1364-5544 0267-9477
DOI:	10.1039/b701718a
Popis:	We report a new volume-optional and low-memory (VOLM) chamber for laser ablation-ICP-MS, which includes an active inner cell and an external cell. The external cell has a gas inlet and is a closed design cell, which can be large enough to accommodate as many targets as required. The inner cell is a transparent cylinder in which the gas outlet is fixed and connected to the outer transfer tube. The VOLM chamber has three outstanding advantages: (1) improved sensitivity (3.5–13.0- and 1.1–2.0-fold greater than for single-pulse and continuous ablation in a standard cell, respectively); (2) good stability (reproducible sampling positions); and (3) low cell-related memory effects (washout time 1–4 s). These advantages mean that the VOLM chamber is suitable for investigating the compositions of small samples in terms of profile and depth analyses.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9741e0462eea9d38ec8b3601270af148 https://doi.org/10.1039/b701718a Zobrazit plný text záznamu