Laser-induced breakdown detection (LIBD) of aquatic colloids with different laser systems

Bundschuh, Tobias; Knopp, R.; Kim, J.I.

doi:10.1016/s0927-7757(99)00497-5

Cited by 78 publications

(51 citation statements)

References 7 publications

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“…Laser pulse energy and intensity of the light emission of each plasma event were digitized and computed by a PC. Data from the charge-coupled-device camera was recorded by a frame grabber card and processed by a software package (Optimate 6.1) [9,13].…”

Section: Methodsmentioning

confidence: 99%

“…Using the CCD-camera system for the optical determination of breakdown probabilities in ultra pure water (MilliQ-UV-Academic Apparatus, Millipore) the breakdown threshold could be determined as a function of the laser pulse energy, as described elsewhere [9,13]. At an energy lower than the breakdown threshold for the ultra pure water, breakdown events occurred selectively due to the dispersed colloids in aqueous solution.…”

Section: Measurement Conditionsmentioning

confidence: 99%

“…With known mean particle diameter and breakdown probability the particle concentration can be calculated. A detailed description of the laser-induced breakdown effect and the principle of LIBD are described elsewhere [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

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Determination of size, concentration and elemental composition of colloids with laser-induced breakdown detection/spectroscopy (LIBD/S)

Bundschuh

Yun²,

Knopp

2001

Fresenius J Anal Chem

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The application of laser-induced breakdown detection (LIBD) as a new and powerful particle-analyzing technique for the determination of solubility data by monitoring initial colloid generation, when the metal ion concentration just exceeds the solubility at a given pH value, is investigated. Laser-induced breakdown spectroscopy (LIBS) is used for selective analysis of an aqueous suspension of lanthanide oxide particles in the presence of the respective lanthanide aquo ion. The detection limit for aquo ion and oxide particle is determined. On the basis of the different detection limits, the LIBS technique is used to study the formation of hydroxide colloids in aqueous solution by varying the pH value until the solubility limit is exceeded. LIBS enables both qualitative and quantitative monitoring of particle formation without artifacts arising from other contaminants. LIBD and LIBS are described and compared. The advantages and disadvantages of the methods for the determination of solubility data are discussed.

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Section: Methodsmentioning

confidence: 99%

Section: Measurement Conditionsmentioning

confidence: 99%

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Determination of size, concentration and elemental composition of colloids with laser-induced breakdown detection/spectroscopy (LIBD/S)

Bundschuh

Yun²,

Knopp

2001

Fresenius J Anal Chem

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“…24 The LIBS plasmas depend strongly on the ambient conditions, the matrix effects and the signal to noise ratio. as well as the particle number density (concentration) (see section 4) of colloids 237 and NPs (20 nm). 24 By using double-pulse LIBS, some signals can be enhanced, such as for Al and Ca lines, up to five times compared to the single-pulse signal.…”

Section: Spectroscopic Techniques For Chemical Identificationmentioning

confidence: 99%

A General Perspective of the Characterization and Quantification of Nanoparticles: Imaging, Spectroscopic, and Separation Techniques

Lapresta-Fernández

Salinas-Castillo

Llana³

et al. 2014

Critical Reviews in Solid State and Materials Sciences

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This review gives an overview of the different techniques used to identify, characterize and quantify engineered nanoparticles (ENPs). The state-of-the-art of the field is summarized, the different characterization techniques have been grouped according to the information they can provide. In addition some selected applications are highlighted for each technique. The classification of the techniques has been carried out according to the main physical and chemical properties of the nanoparticles such as morphology, size, polydispersity characteristics, structural information and elemental composition. Microscopy techniques including optical, electron and X-ray microscopy and separation techniques with and without hyphenated detection systems are discussed. For each of these groups, a brief description of the techniques, the specific features and concepts, as well as several examples are described.

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“…Elements like Ni, Cu, Cr, and Co are associated mainly with smaller -size DOM fractions whereas Al, Fe, lanthanides, Sn, and Th are associated with larger -size DOM fractions (Bolea et al, 2006 ). The laser -induced breakdown detection (LIBD) is a new, sensitive method for the quantifi cation of aquatic colloids of lower -range nanometer size in very low concentration, which cannot be HUMAN IMPACT 389 detected by conventional light scattering methods (Bundschuh et al, 2001 ). Some authors show that the techniques allow us to differ between humic colloids made from Aldrich humic acid and the inorganic components of actinides (Bouby et al, 2002 ).…”

Section: Particulate Mattermentioning

confidence: 99%

Dissolved Organic Matter (DOM) in Natural Environments

Frimmel

Abbt‐Braun

2009

Biophysico‐Chemical Processes Involving Natural Nonliving Organic Matter in Environmental Systems

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Laser-induced breakdown detection (LIBD) of aquatic colloids with different laser systems

Cited by 78 publications

References 7 publications

Determination of size, concentration and elemental composition of colloids with laser-induced breakdown detection/spectroscopy (LIBD/S)

Determination of size, concentration and elemental composition of colloids with laser-induced breakdown detection/spectroscopy (LIBD/S)

A General Perspective of the Characterization and Quantification of Nanoparticles: Imaging, Spectroscopic, and Separation Techniques

Dissolved Organic Matter (DOM) in Natural Environments

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