A new method for highly efficient separation and determination of arsenic species in natural water using silica modified with polyamines

Atomic spectrometry update: review of advances in elemental speciation

“…A method for the determination of iAs species in natural waters using noncovalently aminated silica has been proposed. 41 The polyamines poly(hexamethyleneguanidine), poly(4,9-dioxadodecane-1,12-guanidine), hexadimethrine, and poly(diallyldimethylammonium) were evaluated as silica modiers for the preconcentration of As III and As V from aqueous solutions. Once eluted from the collection cartridges using 2 mol L À1 HNO 3 , the As was determined by ICP-MS and ICP-OES.…”

Atomic Spectrometry Update: review of advances in elemental speciation

“…A method for the determination of iAs species in natural waters using noncovalently aminated silica has been proposed. 41 The polyamines poly(hexamethyleneguanidine), poly(4,9-dioxadodecane-1,12-guanidine), hexadimethrine, and poly(diallyldimethylammonium) were evaluated as silica modifiers for the preconcentration of As III and As V from aqueous solutions. Once eluted from the collection cartridges using 2 mol L −1 HNO 3 , the As was determined by ICP-MS and ICP-OES.…”

Magnesium/Silica/Lanthanum@Activated Carbon for the Remediation of As(III) from Water

“…A wide range of adsorbents, natural or modified, have been tested successfully for arsenic removal. Among them, there are various minerals such as zeolite [26], silica [27], goethite [28], and calcite [29,30], and also activated carbons [14,31,32], biosorbents [33,34], biochars [35], graphene oxides [36], polyethylenimine-modified materials [37], and metal-organic frameworks (MOFs) [38], etc. In addition, synthetic adsorbents such as CeO 2 -ZrO 2 nanospheres [39], molecularly imprinted polymers [40], and the combination of Fe(III)-H 2 O 2 [41] and Fe-Mn binary oxides [42], or the addition of graphene oxide/granular ferric hydroxide (GO/GFH) [36], have also been applied in arsenic removal studies.…”