A Simple Method for Simultaneous Determination of Basic Dyes Encountered in Food Preparations by ReversedPhase HPLC

báo cáo hóa học: " Method optimization and validation for the simultaneous determination of arachidonic acid metabolites in exhaled breath condensate by liquid chromatography-electrospray ionization tandem mass spectrometry" doc

... screw-cap vial for HPLC analysis and 100 µL of the working solution of the internal standard were added to each sample Then the samples were vortex mixed and a 900 µL aliquot was injected into the LC/MS/MS ... some of the structural isomers of prostaglandins, which resulted in the same parent-daughter ion transitions The whole analytical run time, including the recondition step of the column for the ... to the slope and linearity of the calibration curve Due to the low content of matrix compounds in EBC in contrast to other matrix such as urine or plasma which could influence the response of the...

Báo cáo toán học: "A Simple Method for Constructing Small Cubic Graphs of Girths 14, 15, and 16" pptx

... requirement that T be a tree, and also considered cubic forests And we tried replacing the single values of hi by sets of values (we tried sets of size two) Neither of these modiﬁcations produced ... vertices It can be checked by computer that this graph has girth 14, and is the smallest known such graph [2] A Cubic Graph of Girth 15 For our girth 15 construction we use a tree on 14 vertices which ... having girth 15, once again the smallest such graph known [2] A Cubic Graph of Girth 16 For girth 16 we take n = 140 and use the complete binary tree with radius two For even i we label Ti so that...

Báo cáo khoa học: "A Bayesian Method for Robust Estimation of Distributional Similarities" pot

... calculation of distributional similarity The method is straightforward: Instead of using the point estimation of v(wi ), we first estimate the distribution of the context profile, p(v(wi )), by Bayesian estimation ... Conclusion ′ This will give: We proposed a Bayesian method for robust distributional word similarities Our method uses a distribution of context profiles obtained by Bayesian d BCb (w1 , w2 ) = ′ ′ K X ... difficult, for example, by just showing examples of similar word lists here Comparing the results of BCb and BC, Table lists the numbers of improved, unchanged, and degraded words in terms of MP@20 for...

a novel method for the synthesis of titania nanotubes using

... al for amorphous titania nanotubes [30] However, the annealed titania nanotubes are crystalline (mostly anatase) and show varied activity depending on the material preparation and annealing atmosphere ... (3.3 mA/cm2 ; Fig 13) This is due to the lower band gap of carbon-doped titania nanotubes compared with N2 - and O2 annealed nanotubes The lower the band gap of the titania S.K Mohapatra et al / ... pattern of TiO2 nanotubes annealed under N2 atmosphere at 500 ◦ C given in Fig shows predominantly anatase TiO2 [9,22,23] DRUV–vis spectra of the as-anodized and annealed titania nanotubes are...

a novel method for the synthesis of cao nanoparticle

... capping CuO, AP-Fe2O3, AP-Al2O3 and AP -CaO [15 agent was reported Then, we have focused 20] There are several methods for the synthesis our attention on the CaO nanoparticles/ of nanoscale CaO, including ... (2013) GC analysis illustrated that 75% and 100% of 2-CEPS For the evaluation of the reaction of 2-CEPS in contact to the CaO NPs with weight ratio as a sulfurous pollutant on the CaO NPs/ of 1:40 ... colloidal particles in water the high surface area due to smaller particle and many non-aqueous solvents by adsorbing size and the reactive sites tailored in the form onto a broad range of materials,...

báo cáo hóa học:" A rapid method for the generation of uniform acellular bone explants: a technical note" pot

... with the planning and preparation of the manuscript PIF and AES participated in the cutting and staining of Page of the bone tissue RGR participated in the planning of the experiments, data analysis ... analysis and the preparation of the manuscript MJS supervised the study planning, data analysis and preparation of the manuscript All authors read and approved the final manuscript Acknowledgements The ... Biomaterials 1995, 16:545-551 doi: 10.1186/1749-799X-5-32 Cite this article as: Jähn et al., A rapid method for the generation of uniform acellular bone explants: a technical note Journal of Orthopaedic...

Báo cáo hóa học: " Research Article A Practical Approach for Simultaneous Estimation of Light Source Position, Scene Structure, and Blind Restoration Using Photometric Observations" pot

... Experimental results on depth estimation and blind restoration of images In order to obtain the depth map and blind restoration of images, we need to estimate the surface gradients and the blur parameter ... labels for estimating the same was chosen as 10 Figures 7 (a) and S Sharma and ManjunathV Joshi (a) (b) (c) Figure 8: Depth map for vase (a) ground truth and obtained using (b) LS approach on ... reached It may be mentioned here that p, q are all matrices γm and τm are real values corresponding to a particular source position and σ is also a real value As already mentioned, we use the albedo...

Báo cáo hóa học: " Research Article A Simple Method for Guaranteeing ECG Quality in Real-Time Wavelet Lossy Coding" potx

... weights are calculated for each index Baseline frequencies are placed in A5 subband When guaranteeing WWPRDh , A5 subband weight is constant and takes a value of 6/27 On the other hand, when guaranteeing ... baseline wandering when compressing ECG signals, results have been obtained for all the records in the databases both preserving and removing the baseline wandering A simple method that can easily ... obtained for all the databases guaranteeing both WWPRDh and WWPRDw are very accurate in mean value with respect to the target and present a very low standard deviation This fact demonstrates that...

Báo cáo toán học: "A construction method for complete sets of mutually orthogonal frequency squares" pdf

... complete set of mutually orthogonal latin squares (MOLS) of order m The construction The construction that is described in the following theorem provides a way of generating complete sets of MOFS but ... a complete set of MOFS of type F (kmλ; λ) Then there exists a complete set MOFS of type F (kmλ; kλ) Proof Let Γ be an AD(k, m) Then Γ has exactly km points Therefore we can assume the given complete ... plane of order m A classical theorem of Bose states that an aﬃne plane of order m exists if and only if there exists a complete set of orthogonal frequency squares of type F (m; 1); that is, a complete...

Báo cáo toán học: "A simple proof for the existence of exponentially balanced Gray codes" ppsx

... b(i) is the number of times the integer i occurs in the sequence T Note that the sum of all b(i), ≤ i ≤ n, is equal to l, the length of T A simple proof for the existence of exponentially balanced ... like the proof in [10], but much simpler the electronic journal of combinatorics 12 (2005), #N19 Proof: We accomplish the proof using the principle of mathematical induction It is obvious that Gray ... exists an n-bit exponentially balanced Gray code, and if n is a power of two, there exists an n-bit totally balanced Gray code Here, we shall present a proof using Theorem 2.1 The proof is constructive...

báo cáo khoa học: "Experimental comparison of methods for simultaneous selection of two correlated traits in Tribolium. 2. Index selection and independent culling levels : a replicated single generation test" potx

... of selection : index (I) or independent culling levels (N) Each line was propagated by 25 single- pair matings per generation ; male and female offspring were individually weighed and the females ... considered as a fixed factor and replicates as a random factor Estimates of heritabilities and genetic and phenotypic correlations for both traits in the base population were obtained by analysis of variancecovariance ... always larger in the index line than in the independent culling line The difference between average gains in egg laying was significant (tabl 3) The mean value for adult weight increased in all replicates...

báo cáo khoa học:" Sinus lifting before Le Fort I maxillary osteotomy: a suitable method for oral rehabilitation of edentulous patients with skelettal class-III conditions: review of the literature and report of a case" doc

... Conclusion Sinus lifting before Le Fort I maxillary osteotomy is a particularly suitable method for oral rehabilitation of edentulous patients with skelettal class-III conditions and minor degree ... methodological approach of treating a patient with severe mandibular and posterior maxillary alveolar atrophy and skelettal class-III conditions due to cleft palate performing sinus lifting and implant insertion ... abutments and removing the auxililary implants final restauration was placed (figure 5) Discussion The main basic criteria for restauration of the edentulous maxilla and mandible are adequate bone mass...

Liquid chromatographic method for simultaneous determination

... HPLC-UV method for simultaneous determination of 5-fluorouracil, methotrexate, ifosfamide, doxorubicin and cyclophosphamide in surfaces spiked, in six replicates, with µg mL–1 CONCLUSIONS For simultaneous ... indicators or to develop methods able to detect multiple agents Currently, acceptable analytical methods exist for several antineoplastics, but usually only for an individual agent or for small groups ... 1.1 1.1 1.2 6.8 8.4 25.1 26.9 27.9 Table System suitability parameters* for HPLC-UV method evaluated for simultaneous determination of 5-fluoruracil (5-FU), methotrexate (MTX), ifosfamide (IF),...

Utilization of activated carbon for the removal of basic dyes in fixed-bed microcolumn

... effects of the experimental parameters on the performance of activated carbon microcolumns in removing basic dyes from aqueous solution The research also investigates the potential replacement of ... significant role of the diffusion processes in the adsorption of the basic dyes under investigation The consistency in the behaviour of adsorbents toward basic dyes between the equilibrium and ... achieved in the case of PAC2 than that in the case of F400 Regarding the BY dye, F400 showed better performance than PAC2 for the removal of BY dye This is evident from a comparison of the time...

Báo cáo "A new formulation for fast calculation of far field force in molecular dynamics simulations " ppt

... the performance of FMM on GRAPE In this paper we describe our new formulation to speed up far field force calculation – a significant calculation part of FMM on GRAPE Remaining parts of the paper ... and force evaluation Force- evaluation stage consists of near field and far field evaluation parts In the case of original FMM, only the near field part of the force- evaluation stage can be performed ... have newly developed a conversion procudure (hereafter A2P conversion) presented in section 3 A new formulation for fast calculation of far field force Eq (3) gives solution for outer expansion of...

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