Towards routine analysis of TiO 2 (nano-)particle size in consumer products: Evaluation of potential techniques

Dimensional measurement of TiO2 (Nano) particles by SAXS and SEM in powder form

“…for SEM analysis). TiO2 particles have been detected and quantified in numerous sunscreen matrices by multiple analytical techniques, specifically separatives techniques such as, asymmetric flow field-flow fractionation coupled to inductively-coupled plasma-mass spectrometry (AF4-ICP-MS) [33] or single-particle ICP-MS (spICP-MS) [34,35]. As underline by A. Philippe et al [36], in the case of TiO2 particles used in the sunscreens, the multi-technical aspect combination with separation technique and TEM images enabled the determination of constituent particle sizes [36].…”

Physicochemical characteristics of colloidal nanomaterial suspensions and aerosolized particulates from nano‐enabled consumer spray products

“…The physicochemical properties of the suspended ENMs in some nano-enabled consumer spray products and their changes in the process of release into the air were identified. Some studies have reported the characterization of nanoparticles only in aerosols released from consumer spray products, [26][27][28][29][30][31] but it might be limited to provide the more appropriate information for exposure assessment.…”

“…15 There is no single analytical method or instrument able to evaluate the properties of nanoparticles in a variety of media in the F I G U R E 6 Temporal variation in count median diameter before and after spraying environment, so it could be obtained using a combination of some methods to complement the disadvantages of each method (physical properties: microscopic analysis, light scattering, field-flow fractionation, X-ray diffraction and etc; chemical composition: ICP-MS, EDX with EM, and others). 8,30,31,[33][34][35][36][37] In general, DLS and electron microscopy are the most cited techniques for measuring the nanoparticle size in solutions. 33,[38][39][40] The nano-sized fraction of the sprayed aerosols, size distribution, and particle number can be determined by online instruments such as SMPS, aerodynamic particle sampler (APS), and electrical low pressure impactor (ELPI) with the EM method that used to identify the physicochemical properties of particles.…”

Analytical applications of single particle inductively coupled plasma mass spectrometry: a comprehensive and critical review

“…Owing to their specific properties at the nanoscale level, nanoparticles are currently contained in numerous consumer and industrial products. The nano-enhanced products analysed by SP-ICP-MS are summarized in Table 3; they consist of consumer, mainly cosmetics, 53,[77][78][79][80][81][82][83][84][85] and industrial products, including food additives 43,46,89 and other materials, like steel, 90 petroleum products 57,91 or tattoo inks. 92,93 Nanoparticles in cosmetics are mainly focused on sunscreens, [77][78][79]84 in which TiO2 is the most frequent nanocomponent due to its photocatalytical properties, although ZnO has also been studied in this type of products.…”