A highly sensitive method for simultaneous determination of ultra trace levels of copper and cadmium in food and water samples with luminol as a chelating agent by adsorptive stripping voltammetry

Abbasi, Shahryar; Bahiraei, Atousa; Abbasai, Freshteh

doi:10.1016/j.foodchem.2011.05.020

Cited by 58 publications

(24 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Luminol was used as a chelating agent to detect copper and cadmium accurately (obtaining LOD for cadmium equal to 0.02 ng/ mL) in rice, tomato, tea, spinach, tap and mineral water. 15 The same approach was used by Abbasi et al . using 2-mercaptobenzothiazole as a chelating agent on the HDME for lead and cadmium measurement, obtaining LODs of 0.017 ng/mL and 0.01 ng/mL, respectively.…”

Section: Electrochemical Methodsmentioning

confidence: 99%

Screening and confirmatory methods for the detection of heavy metals in foods

Arduini¹,

Palleschi²

2013

Persistent Organic Pollutants and Toxic Metals in Foods

View full text Add to dashboard Cite

Section: Electrochemical Methodsmentioning

confidence: 99%

Screening and confirmatory methods for the detection of heavy metals in foods

Arduini¹,

Palleschi²

2013

Persistent Organic Pollutants and Toxic Metals in Foods

View full text Add to dashboard Cite

“…Zbog visoke osjetljivosti pogodan je za pronalazak ispranih, oku nevidljivih tragova krvi 24 . Daje lažno pozitivne rezultate u prisutnosti soli bakra te s legurama koje sadrže bakar (mesing, bronca) [25][26][27] . Takayama i Teichmannov test su preliminarni testovi koji se baziraju na stvaranju ljubičastih odnosno smeđih mikrokristala.…”

Section: Preliminarni Testovi Za Pronalaženje Tragova Krviunclassified

Biological traces at the crime scene

et al. 2018

View full text Add to dashboard Cite

Sažetak. Biološki tragovi koji se pronađu na mjestu nekog događaja su ljudskog, životinjskog i biljnog podrijetla. Većinom su ljudskog podrijetla -dlake, kosa, krv, sperma, slina, znoj i suze, ali i nokti, zubi i komadići kosti. U raspravi o biološkim tragovima razlikujemo nesporne uzorke i sporne tragove. Nesporne uzorke uzimamo od osumnjičenih, oštećenih i svih ostalih osoba koje su mogle doći u kontakt s tragovima ili predmetima na mjestu događaja, a služe za isključenje. Sporni tragovi su tragovi pronađeni na mjestu događaja, na predmetima ili osobama koje su povezane s mjestom događaja ili počinjenim kaznenim dijelom, a čiji su identitet i uloga u događaju poznati. Prilikom uzimanja bioloških tragova potrebno se pridržavati pravila antikontaminacije i sigurnosti rada s biološkim materijalom, uključujući i mjere samozaštite. Cilj je sudskomedicionskle obrade svih bioloških tragova osigurati dovoljnu količinu kvalitetnog DNK-a koji će se moći upotrijebiti u individualizaciji svakog pojedinog biološkog traga. Osim u tom analitičkom koraku kojim se iz traga nedvojbeno izvodi dokaz, biološki tragovi mogu se obraditi i nekim jednostavnijim, jeftinijim i manje pouzdanim metodama. U ovom preglednom članku obradili smo i sudskomedicinski značaj tragova sperme. Spermu najčešće analiziramo kod kaznenih djela protiv spolne slobode i spolnog ćudoređa. Analiza kose i dlaka koristi se i za povezivanje počinitelja s mjestom događaja ili žrtvom i za razne toksikološke analize, a tragove sline koristimo i za određivanje krvne grupe.Ključne riječi: biološki trag; DNK analiza; profiliranje Abstract. Biological traces found at the crime scene are of human, animal and plant origin. Among them the most commonly present are of human origin -hair, blood, sperm, saliva, sweat and tears, but also nails, teeth and bone bits. When considering biological traces as evidence, we distinguish incontestable and debatable traces. Incontestable samples are taken from suspects, alive victims and from all other people that may have been in contact with the traces or objects at the crime scene. Debatable traces are found at the scene of events, on objects or people associated with the venue or criminal offence, whose identity and role in the event is known. When taking biological traces, it is necessary to comply with the anti-contamination and safety rules regarding handling with biological material, including self-protection measures. The goal of processing biological traces that are usable as court evidence is to provide a sufficient amount of DNA, which can be used in the individualization of each biological trace. However, in addition to this analytical step by which evidence is undoubtedly drawn from the trace, biological traces can be treated with some simpler, cheaper and less reliable methods. In this review article, we also discussed the judicial significance of sperm traces. Sperm is often analyzed for crimes impinging on sexual freedom. Hair samples can be used for toxicological analysis and to connect perpetrators to an event or vict...

show abstract

“…Figure 5 shows plots AdCSV with alizarin versus deposition time. Deposition step (deposition Table 3 time and potential) is the stage of pre-concentration which can increase sensitivity of stripping voltammetric methods [34][35] .…”

Section: Fig 7: Voltammogram Of CD and Zn In Water Samplesmentioning

confidence: 99%

Adsorptive Cathodic Stripping Voltammetric Method with Alizarin for the Simultaneous Determination of Cadmium, and Zinc in Water Samples

Pardi¹,

Suyani²,

Zein³

2016

Orient. J. Chem

View full text Add to dashboard Cite

This paper reports on the development of adsorptive cathodic stripping voltammetric (AdCSV) method with 1,2-dihydroxyanthraquinone or Alizarin (AZ) as a complexing agent used in the simultaneous determination of ultra trace of Cd and Zn because it has a good sensitivity, and selectivity. The influence of several parameters was studied: the effects of 1,2-dihydroxyanthraquinone or Alizarin (AZ) concentration, pH, accumulation potential, and accumulation time. The relative standard deviation (RSD), and recovery is determined to get the accuracy and precision method. It also determined the limit of detection (LOD) of the method to get the sensitivity. In this case, the optimum conditions were AZ concentration of 0.5 mM, pH 5, step deposition (70 s, -0.5 V). This method has been applied in water samples successfully, was obtained (Cd 23, and Zn 124)

show abstract

A highly sensitive method for simultaneous determination of ultra trace levels of copper and cadmium in food and water samples with luminol as a chelating agent by adsorptive stripping voltammetry

Cited by 58 publications

References 28 publications

Screening and confirmatory methods for the detection of heavy metals in foods

Screening and confirmatory methods for the detection of heavy metals in foods

Biological traces at the crime scene

Adsorptive Cathodic Stripping Voltammetric Method with Alizarin for the Simultaneous Determination of Cadmium, and Zinc in Water Samples

Contact Info

Product

Resources

About