Trace analysis of isothiazolinones in water samples by large-volume direct injection liquid chromatography tandem mass spectrometry

Speksnijder, P; Ravestijn, J. van; Voogt, P. de

doi:10.1016/j.chroma.2010.06.010

Cited by 41 publications

(34 citation statements)

References 9 publications

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“…Isothiazolone biocides are widely used as antimicrobial agents to control microbial growth and biofouling in industrial applications, such as cooling towers, metal-working fluids, paper systems, and cosmetics (Xu et al 2009;Speksnijder et al 2010). In previously published studies, various antimicrobial agents such as dicloxacillin (Cerca et al 2005), azithromycin (Starner et al 2008), chlorhexidine (Dong et al 2012), lactoferricin B (Sengupta et al 2012), and even acidic and basic electrolyzed water (Sun et al 2012), have been shown to affect biofilm inhibition or elimination.…”

Section: Discussionmentioning

confidence: 98%

Efficacy of metal ions and isothiazolones in inhibiting Enterobacter cloacae BF-17 biofilm formation

Zhou

Shi

et al. 2014

Can. J. Microbiol.

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Enterobacter cloacae is a nosocomial pathogen. The E. cloacae strain BF-17, with a high capacity for biofilm formation, was screened and identified from industrially contaminated samples, carried out in our laboratory. To develop an efficient strategy to deal with biofilms, we investigated the effects of metal ions, including Na⁺, K⁺, Ca⁺, Mg⁺, Cu⁺, and Mn⁺, and 3 isothiazolones, on elimination of E. cloacae BF-17 biofilm formation by using a 0.1% crystal violet staining method. The results revealed that higher concentrations of Na⁺ or K⁺ significantly inhibited E. cloacae BF-17 biofilm development. Meanwhile, Ca²⁺ and Mn²⁺ stimulated biofilm formation at low concentration but exhibited a negative effect at high concentration. Moreover, biofilm formation decreased with increasing concentration of Mg²⁺ and Cu²⁺. The isothiazolones Kathon (14%), 1,2-benzisothiazolin-3-one (11%), and 2-methyl-4-isothiazolin-3-one (10%) stimulated initial biofilm formation but not planktonic growth at low concentrations and displayed inhibitory effects on both biofilm formation and planktonic growth at higher concentrations. Unfortunately, the 3 isothiazolones exerted negligible effects on preformed or fully mature biofilms. Our findings suggest that Na⁺, K⁺, Mg²⁺, and isothiazolones could be used to prevent and eliminate E. cloacae BF-17 biofilms.

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Section: Discussionmentioning

confidence: 98%

Efficacy of metal ions and isothiazolones in inhibiting Enterobacter cloacae BF-17 biofilm formation

Zhou

Shi

et al. 2014

Can. J. Microbiol.

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“…With the advent of commercialized mass spectrometers fitted with multiple stage vacuum systems and with more efficient atmospheric pressure ionization (API) sources, higher LC flow rates, larger column diameters and larger injection volumes were made possible. An increasing number of publications have since appeared in the scientific literature that describe SC-LVI for use with mass spectrometry for the determination of pesticides in vegetables [20], water [21][22][23][24][25][26][27][28][29], and soil [30][31][32][33]; fluorochemicals in wastewater, groundwater and surface water [33][34][35][36][37]; neurotoxins in surface water, groundwater and drinking water [38,39]; pharmaceuticals (legal and/or illicit) in surface, ground, and waste water [25,33,[40][41][42][43][44]; corrosion inhibitors in surface, ground, and waste water [33,45]; chelating agents in surface, drinking, and waste water [46]; iodinated chemicals in waste water and treated water [47][48][49]; artificial sweeteners in ground, waste, and treated water [50]; biocides in surface and waste water [51]; bisphenol A in soil [33]; steroids in waste water [52]; and surfactants in seawater (unpublished) ( Table 2). The success and popularity of SC-LVI compared to ON-E and CC-LVI are most likely due to its sim...…”

Section: The History Of Large-volume or Direct-injectionmentioning

confidence: 99%

Trace analysis of environmental matrices by large-volume injection and liquid chromatography–mass spectrometry

et al. 2011

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The time-honored convention of concentrating aqueous samples by solid-phase extraction (SPE) is being challenged by the increasingly wide spread use of large-volume injection (LVI) liquid chromatography-mass spectrometry (LC-MS) for the determination of traces of polar organic contaminants in environmental samples. Although different LVI approaches have been proposed over the last 40 years, the simplest and most popular way of performing LVI is known as single column LVI (SC-LVI), in which a large-volume of an aqueous sample is directly injected into an analytical column. For the purposes of this critical review, LVI is defined as an injected sample volume that is ≥ 10% of the void volume of the analytical column. Compared to other techniques, SC-LVI is easier to set up, as it only requires small hardware modifications to existing autosamplers and, thus, will represent the main focus of the current review. Although not new, SC-LVI is gaining acceptance and the approach is emerging as a technology that will render SPE nearly obsolete for many environmental applications. In this review, we discuss 1) the history and development of various forms of LVI, 2) the critical factors that one needs to consider when creating and optimizing SC-LVI methods and 3) example applications that demonstrate the range of environmental matrices, to which LVI is applicable such as drinking water, groundwater and surface water including seawater as well as wastewater. Furthermore, we give responses to answer a set of 'frequently asked questions' typically encountered from audiences and we indicate future directions and areas that need to be addressed to fully delineate the limits of SC-LVI.

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“…Regarding LC-MS/MS, it is used by means of QqQ analyzers and in the ESI mode. Nevertheless, APCI was used in a few cases [43,121]. In fact, Wick et al…”

Section: Preservativesmentioning

confidence: 99%

“…Just in one case no sample extraction was carried out and the sample was directly injected into an LC system [121]. This is not the current trend since concentration of the target compounds and removing of potentially interfering compounds are needed.…”

Section: Preservativesmentioning

confidence: 99%

Analytical Methodologies for the Determination of Personal Care Products in Water Samples

Chisvert

Salvador

2014

The Handbook of Environmental Chemistry

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Personal-care products (PCPs) could reach the aquatic environment and cause a great impact in the aquatic ecosystem. In this sense, the monitoring of these emerging pollutants in the environment yields valuable information. For this reason, analytical methods to determine PCPs in environmental waters are needed. Due to the low concentration of the PCPs, i.e. ng L À1 , sensitive methods are needed. This required sensitivity can be achieved by using sensitive analytical techniques during the measurement step, or by employing enrichment techniques during the sample treatment step. Obviously, the combination of both sensitive analytical techniques and extraction techniques considerably improves the quality of the determination.In this way, in the last years, different analytical methods have been developed to determine PCPs in environmental waters from different origin, i.e., water from sea, lake, river, influent and/or effluent wastewater treatment plant, swimming pool, tap, and groundwater. The aim of this chapter is to compile and discuss the analytical literature dealing with the development and validation of analytical methods for determining PCPs in environmental water samples, emphasizing both the employed sample treatment and the subsequent analytical technique.

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Trace analysis of isothiazolinones in water samples by large-volume direct injection liquid chromatography tandem mass spectrometry

Cited by 41 publications

References 9 publications

Efficacy of metal ions and isothiazolones in inhibiting Enterobacter cloacae BF-17 biofilm formation

Efficacy of metal ions and isothiazolones in inhibiting Enterobacter cloacae BF-17 biofilm formation

Trace analysis of environmental matrices by large-volume injection and liquid chromatography–mass spectrometry

Analytical Methodologies for the Determination of Personal Care Products in Water Samples

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