Selective arsenic speciation analysis of human urine reference materials using gradient elution ion-exchange HPLC-ICP-MS

2004 ◽  
Vol 19 (8) ◽  
pp. 973 ◽  
Author(s):  
Jens J. Sloth ◽  
Erik H. Larsen ◽  
K�re Julshamn
Epidemiology ◽  
2009 ◽  
Vol 20 ◽  
pp. S154-S155 ◽  
Author(s):  
Yoshihiro Suzuki ◽  
Yasuyo Shimoda ◽  
Yoko Endo ◽  
Akihisa Hata ◽  
Kenzo Yamanaka ◽  
...  

2009 ◽  
Vol 51 (4) ◽  
pp. 380-385 ◽  
Author(s):  
Yoshihiro Suzuki ◽  
Yasuyo Shimoda ◽  
Yoko Endo ◽  
Akihisa Hata ◽  
Kenzo Yamanaka ◽  
...  

2021 ◽  
Vol 42 (5) ◽  
Author(s):  
Huiling Li

Clinimetallomics is proposed as a branch of metallomics that focuses on the study of the metallome in clinical samples of urine, blood, and tissues. As the clinical diagnosis of arsenic poisoning is mainly based on the concentration of total arsenic in urine, the toxicity of arsenic varies greatly in different speciation. Analysis of arsenic speciation with excessive total arsenic in urine can provide a basis for precise treatment. It can also be used to understand the fate of arsenic in the body of patients with arsenic poisoning after treatment with sodium dimercaptopropane sulfonate. In this study, a HPLC-ICP-MS method was established for the determination of arsenic species in urine samples from patients diagnosed with arsenism. Use the established method to detect urine samples, which can be directly assayed after simple sample dilution with 20 mmol/L EDTA-2Na. With the concentration of arsenic speciation in the range of 1.0~100.0 ng/mL, the linear correlation coefficient was higher than 0.99996. The recoveries were between 92.4% and 109.0%. The precision of the concentration and retention time (n = 3) were less than 3.0% and 0.3%, respectively, and the detection limit was between 1.42 ng/mL and 1.86 ng/mL. This method can be applied to arsenic speciation in the urine of healthy people, in patients treated for arsenic poisoning, and in patients diagnosed with arsenism.


1998 ◽  
Vol 59 (1) ◽  
pp. 89-99 ◽  
Author(s):  
Mariella Moldovan ◽  
M.Milagros Gómez ◽  
M.Antonia Palacios ◽  
Carmen Cámara

Talanta ◽  
2021 ◽  
pp. 122714
Author(s):  
Jiaojiao Wang ◽  
Dihui Xu ◽  
Zuyao Ni ◽  
Chengli Yu ◽  
Jiajia Wang ◽  
...  

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1069 ◽  
Author(s):  
Katarzyna Karaś ◽  
Anetta Zioła-Frankowska ◽  
Marcin Frankowski

Aluminum is very common in the natural environment and in everyday human life. We are living in the “aluminum age.” Its average daily intake should not exceed a few mg/day. Unfortunately, despite the growing number of alarming data about the toxicity of this element, human exposure to aluminum is constantly increasing. The toxicity and bioavailability of aluminum depends mainly on the form in which it occurs. The main variables conditioning the form are the concentration, the type, the molar ratio of aluminum to ligand, the pH value, and the temperature. This research presents a new method for speciation analysis of both inorganic and organic aluminum complexes in model solutions by LC–ICP–MS. Different solutions with variable pH values and different Al/ligand molar ratios (fluorides and several organic ligands, e.g., citrates and oxalates ions) were used. The chromatographic separation process was carried out based on isocratic and gradient elution, using a cation exchange analytical column. All determinations have been confirmed based on chemical equilibrium modeling programs. The new developed method was successfully applied for the first time in speciation analysis of real samples: white and red wine.


Sign in / Sign up

Export Citation Format

Share Document