Evaluation of Analysis Results and Element Analysis of Salted Field Plant Spergularia rubra (L) J. Presl & C. Presl Using Chemometric Techniques

Spergularia (Caryophyllaceae) is seen as a cosmopolitan breed, ranging from temperate regions of all continents to sub-tropical climate regions, except for the Antarctic continent. Many of these strains have been investigated chemically and pharmacologically, such as hypoglycemic, diuretic, antihypertensive and cholesterol-lowering agents, antidiabetic, anti-cholinesterase antidiabetic agents. There are seven species of the genus second side being endemic in Turkey. In this study, all samples collected had been digested by microwave digestion system then element analysis of Spergularia rubra (L.) bitumen grown in the areas of Akdoğmuş, Çöl, Çaykaya, Gölgelikonak and Üzümlük in Siirt and surrounding areas was carried out by ICP-OES. The highest values of Be, Cd, Co, Cr, Cu, Li, Mn, Mo, Nb, Pb, Sb and Se were found to be 1.44, 1.62, 1.95, 8.38, 10.21, 5.78, 64.60, 1.51, 9.78, 2.87, 3.43 mg / L, respectively; Fe, K, Mg and Na values were found to be 1.56, 23.72, 14.82, 33.66 g / L. The highest concentrations of Na and K were found in Akdoğmuş and the concentrations of Fe and Mg were found in the Çöl. Chemometric techniques such as correlation, PCA and CA have been applied to saline areas and elemental contents.  In the chemometric study, it was seen that the correlations at 99% level were very high. From the principle component analysis (PCA), the first two eigenvalues were found to be ≥1. Two factors were found after maximal rotation and commonality

Evaluation of Analysis Results and Element Analysis of Salted Field Plant Spergularia rubra (L) J. Presl & C. Presl Using Chemometric Techniques

Spergularia (Caryophyllaceae) is seen as a cosmopolitan breed, ranging from temperate regions of all continents to sub-tropical climate regions, except for the Antarctic continent. Many of these strains have been investigated chemically and pharmacologically, such as hypoglycemic, diuretic, antihypertensive and cholesterol-lowering agents, antidiabetic, anti-cholinesterase antidiabetic agents. There are seven species of the genus second side being endemic in Turkey. In this study, all samples collected had been digested by microwave digestion system then element analysis of Spergularia rubra (L.) bitumen grown in the areas of Akdoğmuş, Çöl, Çaykaya, Gölgelikonak and Üzümlük in Siirt and surrounding areas was carried out by ICP-OES. The highest values of Be, Cd, Co, Cr, Cu, Li, Mn, Mo, Nb, Pb, Sb and Se were found to be 1.44, 1.62, 1.95, 8.38, 10.21, 5.78, 64.60, 1.51, 9.78, 2.87, 3.43 mg / L, respectively; Fe, K, Mg and Na values were found to be 1.56, 23.72, 14.82, 33.66 g / L. The highest concentrations of Na and K were found in Akdoğmuş and the concentrations of Fe and Mg were found in the Çöl. Chemometric techniques such as correlation, PCA and CA have been applied to saline areas and elemental contents. In the chemometric study, it was seen that the correlations at 99% level were very high. From the principle component analysis (PCA), the first two eigenvalues were found to be ?1. Two factors were found after maximal rotation and commonality

The element analysis of Carlina lanata L. collected from Siirt province

Carlina, papatyagiller familyasının bir cinsi olup dünyada yaklaşık 23 türü bulunmaktadır. Carlina cinsinin dünyadaki yayılışı ağırlıklı olarak Avrupa ve Güneydoğu Asya’dır. Ayrıca Doğu Asya ve Kuzey Amerika’da da türleri bulunmaktadır [1, 2]. Türkiye’de Carlina cinsinin bir tanesi endemik olmak üzere toplam 11 taksonu bulunmaktadır [3]. Türkiye’de bulunan türler șunlardır: C. traganthifolia Klatt, C. corymbosa L., C. graeca Heldr. & Sart., C. oligocephala Boiss. & Kotschy, C. involucrata Poiret subsp. libanotica (Boiss.) Meusel & Kästner, C. lanata L., C. vulgaris L., C. intermedia Schur, C. biebersteinii Bernh. ex Hornem [4]. Bu çalışmada, kullanılan bitki, Siirt'teki Akdoğmuş köyünün tuzlu alanından toplanmıştır. Bu bitki gölgede oda sıcaklığında kurutulmuş ve daha sonra öğütülmüştür. Çözünürleştirme işlemi için; ilk olarak, kurutulmuş bitki 0,5 g olarak tartılıp ve basınca dayanıklı PTFE (Politetrafloroetilen) kabına konuldu. Daha sonra, 10 mL nitrik asit ve 2 mL hidrojen peroksit karışımı, tartılan bitki numunesine ilave edildi ve karışım, NO2 dumanları çıkana kadar beklemeye bırakıldı. Akabinde, karışımın çözünmesi, PTFE kaplarda Speedwawe MWS-3 Berghof marka mikrodalga fırınında gerçekleştirildi. Çözünürleştirme sonrası süzülen numuneler son hacimleri destile su ile 25 mL' ye tamamlandı. Element miktarlarını belirlemek için Model Optima ™ 7000 DV ICP-OES (İndüktif Eşleşmiş Plazma Optik Emisyon Spektrometresi) (Perkin Elmer, Inc., Shelton, CT, ABD) kullanılmıştır. Siirt, Akdoğmuş köyü tuzlu alanda yetişen Carlina lanata L. bitkisinin element analiz sonuçlarına göre, mg/L olarak belirlenen elementlerin değerleri aşağıdaki gibidir; As, Be, Cd, Co, Cr, Cu, Fe, Li, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, V ve Zn değerleri sırasıyla 3,13; 1,56; 1,43; 0,95; 1,77; 5,23; 86,60; 2,85; 16,79; 1,56; 1,70; 10,94; 3,67; 6,87; 120,04; 4,62; 0,68 ve 12,78’tir. Bunun dışında K, Mg ve Na gibi makro elementler g/L olarak bulunmuş ve değerleri sırasıyla 9,92, 1,06 ve 2,09'dur.Siirt Üniversitesi Bilimsel Araştırma Projeleri 2013-SİÜFED-F1 nolu proje ile desteklenmiştir

Phallus impudicus loaded with gamma-Fe2O3 as solid phase bioextractor for the preconcentrations of Zn(II) and Cr(III) from water and food samples

We investigated the application of fungus Phallus impudicus loaded gamma-Fe2O3 nanoparticles as a biosorbent for magnetic solid phase extractions of trace levels of Zn(II) and Cr(III) ions from natural samples before their measurements by inductively coupled plasma optical emission spectrometry. The characterization of magnetized P. impudicus was performed using the scanning electron microscope, the energy dispersive X-ray and Fourier transform infrared spectroscopy. Important experimental factors were investigated. The experimental results fitted well to the Langmuir adsorption model and pseudo-second order kinetic model. Limit of detections of targeted ions by magnetic solid phase extraction method based on use of P. impudicus were found as 10.5 ngL(-1) and 12.6 ngL(-1) respectively for Cr(III) and Zn(II). The sorption capacities of the biosorbent were 22.8 mgg(-1) for Cr(III) and 25.6 mgg(-1) for Zn(II). The preconcentration factors were achieved as 100 for both of ions. RSDs for inter- and intraday precisions were found as lower than 2.0% and 2.1% respectively for both of targeted ions. The accuracy of the recommended process was tested by recovery measurements on the certificated reference materials and successfully applied for quantification recoveries of Cr(III) and Zn(II) ions from water and food samples

Preconcentration with bacillus subtilis immobilized amberlite xad-16: determinations of cu2+ and ni2+ in river, soil, and vegetable samples

Solid-phase extraction (SPE) method was developed for the preconcentration of Cu and Ni before their determination by inductively coupled plasma optical emission spectrometry (ICP-OES). Bacillus subtilis– immobilized Amberlite XAD-16 was used as biosorbent. Effects of critical parameters such as pH, flow rate of samples, amount of Amberlite XAD-16 and biosorbent, sample volume, eluent type, and volume and concentration of eluent on column preconcentration of Cu and Ni were optimized. Applicability of the method was validated through the analysis of the certified reference tea sample (NCS ZC73014). Sensitivity of ICP-OES was improved by 36.4-fold for Cu2C and 38.0-fold for Ni2C by SPE-ICP-OES method. Limit of quantitation (LOQ) was found to be 0.7 and 1.1 ng/ml for Cu2C and Ni2C, respectively. Concentrations of Cu and Ni were determined by ICP-OES after application of developed method. Relative standard deviations (RSDs) were lower than 4.9% for Cu and 7.9% for Ni. The Tigris River that irrigates a large agricultural part of Southeast Turkey is polluted by domestic and industrial wastes. Concentrations of Cu and Ni were determined in water, soil, and some edible vegetables as a biomonitor for heavy metal pollution

Selective preconcentration of lanthanum (III) by coriolus versicolor immobilized on amberlite XAD-4 and its determination by ICP-OES.

Coriolus versicolor, a wood fungus, was immobilised on Amberlite XAD-4 and used as solid-phase biosorbent for preconcentrations of rare earth elements. La(III), Th(IV), U(IV) and Ce(III) were subjected to solid-phase extraction procedure. We observed that La(III) was selectively preconcentrated, while other ions remained in solution at pH 6.0. 5.0 mL of 1.0 mol L−1 HCl was used to elaute La(III) from column. 250 mg of C. versicolor loaded on 1000 mg of XAD-4 was optimised as solid-phase matrix. Concentrations of ions in solutions were determined by inductively coupled plasma– optical emission spectrometry (ICP-OES). The calibration plot after preconcentration was linear in the range from 1.0 to 50.0 ng mL−1 for La(III). Limit of detection was found as 0.27 ng mL−1 for La(III) by SPE method. Relative standard deviation was found lower than 6.7% for 1.0 ng mL−1 of La(III) solution (n = 10). The sensitivity of ICP-OES was improved by a factor of 46.8. The applicability of the method was validated through the analysis of certified reference samples of tea (NCS ZC-73014) and spinach (NCS ZC-73013)

The Impact of CoronaVac Vaccination on 28-day Mortality Rate of Critically Ill Patients with COVID-19 in Türkiye

Background:Vaccines against coronavirus disease-19 (COVID-19) have been effective in preventing symptomatic diseases, hospitalizations, and intensive care unit (ICU) admissions. However, data regarding the effectiveness of COVID-19 vaccines in reducing mortality among critically ill patients with COVID-19 remains unclear.Aims:To determine the vaccination status and investigate the impact of the COVID-19 vaccine on the 28-day mortality in critically ill patients with COVID-19.Study Design:Multicenter prospective observational clinical study.Methods:This study was conducted in 60 hospitals with ICUs managing critically ill patients with COVID-19. Patients aged ≥ 18 years with confirmed COVID-19 who were admitted to the ICU were included. The present study had two phases. The first phase was designed as a one-day point prevalence study, and demographic and clinical findings were evaluated. In the second phase, the 28-day mortality was evaluated.Results:As of August 11, 2021, 921 patients were enrolled in the study. The mean age of the patients was 65.42 ± 16.74 years, and 48.6% (n = 448) were female. Among the critically ill patients with COVID-19, 52.6% (n = 484) were unvaccinated, 7.7% (n = 71) were incompletely vaccinated, and 39.8% (n = 366) were fully vaccinated. A subgroup analysis of 817 patients who were unvaccinated (n = 484) or who had received two doses of the CoronaVac vaccine (n = 333) was performed. The 28-day mortality rate was 56.8% (n = 275) and 57.4% (n = 191) in the unvaccinated and two-dose CoronaVac groups, respectively. The 28-day mortality was associated with age, hypertension, the number of comorbidities, type of respiratory support, and APACHE II and sequential organ failure assessment scores (p < 0.05). The odds ratio for the 28-day mortality among those who had received two doses of CoronaVac was 0.591 (95% confidence interval: 0.413-0.848) (p = 0.004).Conclusion:Vaccination with at least two doses of CoronaVac within six months significantly decreased mortality in vaccinated patients than in unvaccinated patients

The prevalence of microalbuminuria and relevant cardiovascular risk factors in Turkish hypertensive patients.

Objectives: A growing body of data illustrates the importance of microalbuminuria (MAU) as a strong predictor of cardiovascular risk in the hypertensive population. The present study was designed to define the prevalence of MAU and associated cardiovascular risk factors among Turkish hypertensive outpatients. Study design: Representing the Turkish arm of the multinational i-SEARCH study involving 1,750 sites in 26 countries around the world, a total of 1,926 hypertensive patients from different centers were included in this observational and cross-sectional survey study. Patients with reasons for a false-positive MAU test were excluded. The prevalence of MAU was assessed using a dipstick test, and patients were inquired about comorbidities, comedication, and known cardiovascular risk factors. Results: The overall prevalence of MAU was 64.7% and there was no difference between genders. Most of the patients (82.5%) had uncontrolled hypertension, 35.6% had dyslipidemia, and 35.5% had diabetes, predominantly type 2. Almost one-third of the patients (26.4%) had at least one cardiovascular-related comorbidity, with 20.3% having documented coronary artery disease (CAD). Almost all patients (96.8%) had one or more risk factors for cardiovascular disease in addition to hypertension, including family history of myocardial infarction or CAD, diabetes, dyslipidemia, lack of physical exercise, and smoking. A trend towards higher MAU values in the presence of CAD was determined. Conclusion: Microalbuminuria tests should be routinely used as a screening and monitoring tool for the assessment of subsequent cardiovascular morbidity and mortality among hypertensive patients. © 2011 Turkish Society of Cardiology