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2017 Volume 45 Issue 7
2017, 45(7): 937-943
doi: 10.11895/j.issn.0253-3820.170248
Abstract:
Early diagnosis and intervention is an important way to delay the progress of Alzheimer's disease (AD). Compared with cerebrospinal fluid, blood sampling is not invasive and easy to be obtained in clinic practice. In this study, the serum samples of ...
Early diagnosis and intervention is an important way to delay the progress of Alzheimer's disease (AD). Compared with cerebrospinal fluid, blood sampling is not invasive and easy to be obtained in clinic practice. In this study, the serum samples of ...
2017, 45(7): 944-950
doi: 10.11895/j.issn.0253-3820.170014
Abstract:
In this work, we used dual-polarization interferometry to explore the binding events between adenosine triphosphate (ATP) and ATP-binding aptamer (ABA) at solid-liquid interface. The single-stranded ABA was immobilized onto the chip surface. After th...
In this work, we used dual-polarization interferometry to explore the binding events between adenosine triphosphate (ATP) and ATP-binding aptamer (ABA) at solid-liquid interface. The single-stranded ABA was immobilized onto the chip surface. After th...
2017, 45(7): 951-957
doi: 10.11895/j.issn.0253-3820.170104
Abstract:
In the present study, the effect of serum (fetal bovine serum, FBS) on cellular uptake behaviors of DNA tetrahedron (TDNs) was investigated. Fluorescence-labeled TDNs were synthesized by self-assembly and purified with HPLC to achieve TDNs product wi...
In the present study, the effect of serum (fetal bovine serum, FBS) on cellular uptake behaviors of DNA tetrahedron (TDNs) was investigated. Fluorescence-labeled TDNs were synthesized by self-assembly and purified with HPLC to achieve TDNs product wi...
2017, 45(7): 958-964
doi: 10.11895/j.issn.0253-3820.160923
Abstract:
While the near infrared spectroscopy (NIRS) is used to measure the inhomogeneous samples with diffuse reflection mode, the accuracy and robustness of the calibration model is not quite good for the variation of spectrum scattering and absorption coef...
While the near infrared spectroscopy (NIRS) is used to measure the inhomogeneous samples with diffuse reflection mode, the accuracy and robustness of the calibration model is not quite good for the variation of spectrum scattering and absorption coef...
2017, 45(7): 965-972
doi: 10.11895/j.issn.0253-3820.170081
Abstract:
Quantitative calibration strategy as an essential issue in laser ablation ICP-MS plays an important role for the guarantee of analytical accuracy. In this study, uncertainties of reference values in current available glass certified reference materia...
Quantitative calibration strategy as an essential issue in laser ablation ICP-MS plays an important role for the guarantee of analytical accuracy. In this study, uncertainties of reference values in current available glass certified reference materia...
2017, 45(7): 973-979
doi: 10.11895/j.issn.0253-3820.170150
Abstract:
Trace impurities of Al, Ca, Co, Fe, K, Mg, Mn, Na, Ni in silicon nitride powder were determined by slurry introduction into a solution-cathode glow discharge-atomic emission spectrometer (SCGD-AES). The effect of particle size on the stability of sus...
Trace impurities of Al, Ca, Co, Fe, K, Mg, Mn, Na, Ni in silicon nitride powder were determined by slurry introduction into a solution-cathode glow discharge-atomic emission spectrometer (SCGD-AES). The effect of particle size on the stability of sus...
2017, 45(7): 980-986
doi: 10.11895/j.issn.0253-3820.170012
Abstract:
Solid internal pressure is one of the important parameters in traffic bridge and defense field. However, the existing testing equipments have the defects of serious electromagnetic interference, poor reliability, and poor accuracy. To overcome the ab...
Solid internal pressure is one of the important parameters in traffic bridge and defense field. However, the existing testing equipments have the defects of serious electromagnetic interference, poor reliability, and poor accuracy. To overcome the ab...
2017, 45(7): 987-995
doi: 10.11895/j.issn.0253-3820.170180
Abstract:
A method was developed for determination of 12 kinds of phosphate compounds in water and sediment by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) coupled with solid phase extraction (SPE) and ultrasonic extraction. The...
A method was developed for determination of 12 kinds of phosphate compounds in water and sediment by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) coupled with solid phase extraction (SPE) and ultrasonic extraction. The...
2017, 45(7): 996-1004
doi: 10.11895/j.issn.0253-3820.160853
Abstract:
A ball milling method which is green with simple-manipulation and low-cost was used to prepare graphene as precursor for graphene quantum dots (GQDs) synthesis. Subsequently, GQDs with good dispersibility, uniform size distribution, average diameter ...
A ball milling method which is green with simple-manipulation and low-cost was used to prepare graphene as precursor for graphene quantum dots (GQDs) synthesis. Subsequently, GQDs with good dispersibility, uniform size distribution, average diameter ...
2017, 45(7): 1005-1011
doi: 10.11895/j.issn.0253-3820.160872
Abstract:
Huolinguole lignite was sequentially extracted with carbon disulfide, ethyl acetate, methanol and acetone. All of the extracts were analyzed using a time-of-flight mass spectrometry (TOF-MS) equipped with an atmospheric pressure photoionization (APPI...
Huolinguole lignite was sequentially extracted with carbon disulfide, ethyl acetate, methanol and acetone. All of the extracts were analyzed using a time-of-flight mass spectrometry (TOF-MS) equipped with an atmospheric pressure photoionization (APPI...
2017, 45(7): 1012-1018
doi: 10.11895/j.issn.0253-3820.170110
Abstract:
Sulfonamides (SAs), such as sulfaguanidine (SGD), sulfadiazine (SDZ), sulfathiazole (STZ) and sulfamethazine (SMZ), can drastically inhibit the chemiluminescence (CL) intensities generated in both Ag(Ⅲ)-Luminol and Ni(Ⅳ)-Luminol systems. Based on the...
Sulfonamides (SAs), such as sulfaguanidine (SGD), sulfadiazine (SDZ), sulfathiazole (STZ) and sulfamethazine (SMZ), can drastically inhibit the chemiluminescence (CL) intensities generated in both Ag(Ⅲ)-Luminol and Ni(Ⅳ)-Luminol systems. Based on the...
2017, 45(7): 1019-1024
doi: 10.11895/j.issn.0253-3820.170145
Abstract:
An efficient method for the analysis of cefotaxime and its metabolite desacetylcefotaxime residues in eggs was developed based on high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The samples were homogenized and extracted...
An efficient method for the analysis of cefotaxime and its metabolite desacetylcefotaxime residues in eggs was developed based on high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The samples were homogenized and extracted...
2017, 45(7): 1025-1030
doi: 10.11895/j.issn.0253-3820.160877
Abstract:
Paeonol has inhibitory effect on a variety of tumor cells, whereas cadherin is a kind of glycoprotein that is associated with the occurrence and development of different tumor. In this study, the interactions of paeonol and E-cadherin have been inves...
Paeonol has inhibitory effect on a variety of tumor cells, whereas cadherin is a kind of glycoprotein that is associated with the occurrence and development of different tumor. In this study, the interactions of paeonol and E-cadherin have been inves...
2017, 45(7): 1031-1037
doi: 10.11895/j.issn.0253-3820.170063
Abstract:
Molecularly imprinted polymer (MIP) was synthesized by precipitation polymerization using ribavirin as the template molecule and methacrylic acid as the functional monomer. The sensitive film of ribavirin electrode was constructed by molecularly impr...
Molecularly imprinted polymer (MIP) was synthesized by precipitation polymerization using ribavirin as the template molecule and methacrylic acid as the functional monomer. The sensitive film of ribavirin electrode was constructed by molecularly impr...
2017, 45(7): 1038-1044
doi: 10.11895/j.issn.0253-3820.170085
Abstract:
Three kinds of PEGylated gold nanoparticles (PEG-Au NPs) with different surface charges are prepared by assembly of thiolated polyethylene glycol (HS-PEG) with different terminal groups including methoxy, amino or carboxyl on gold nanoparticle surfac...
Three kinds of PEGylated gold nanoparticles (PEG-Au NPs) with different surface charges are prepared by assembly of thiolated polyethylene glycol (HS-PEG) with different terminal groups including methoxy, amino or carboxyl on gold nanoparticle surfac...
2017, 45(7): 1045-1051
doi: 10.11895/j.issn.0253-3820.160843
Abstract:
Fish oil is an important nutrient component in rainbow trout bone, and the optimization of extraction by enzymatic hydrolytic method is of great significance. This study selected the alkaline protease as the hydrolytic enzyme, and optimized the proce...
Fish oil is an important nutrient component in rainbow trout bone, and the optimization of extraction by enzymatic hydrolytic method is of great significance. This study selected the alkaline protease as the hydrolytic enzyme, and optimized the proce...
2017, 45(7): 1052-1058
doi: 10.11895/j.issn.0253-3820.170164
Abstract:
An analytical method of ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC/PDA-QDa) for the qualitative and quantitative analysis of Δ9-tetrahydrocannabinol (Δ9-THC), cannabidiol (CBD), and cannabinol (CBN) in confiscated can...
An analytical method of ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC/PDA-QDa) for the qualitative and quantitative analysis of Δ9-tetrahydrocannabinol (Δ9-THC), cannabidiol (CBD), and cannabinol (CBN) in confiscated can...
2017, 45(7): 1059-1065
doi: 10.11895/j.issn.0253-3820.170115
Abstract:
The method of quantitative nuclear magnetic resonance spectroscopy (qNMR) for determination of epigoitrin in Radix Isatidis was established based on solid phase extraction (SPE). The twice ultrasonic extraction method using pure water was used for fu...
The method of quantitative nuclear magnetic resonance spectroscopy (qNMR) for determination of epigoitrin in Radix Isatidis was established based on solid phase extraction (SPE). The twice ultrasonic extraction method using pure water was used for fu...
2017, 45(7): 1066-1077
doi: 10.11895/j.issn.0253-3820.170113
Abstract:
Stable isotope coded derivatization (ICD) is an isotope labeling technique for specific functional groups of the target analytes through chemical derivatization. ICD combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) enables syst...
Stable isotope coded derivatization (ICD) is an isotope labeling technique for specific functional groups of the target analytes through chemical derivatization. ICD combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) enables syst...
2017, 45(7): 1078-1087
doi: 10.11895/j.issn.0253-3820.170157
Abstract:
Nanocarrier systems have been widely used for improving solubility, stability and therapeutic activity of drugs due to their high drug-loading efficiency, good target specificity and long circulation time. To achieve precisely controlled loading and ...
Nanocarrier systems have been widely used for improving solubility, stability and therapeutic activity of drugs due to their high drug-loading efficiency, good target specificity and long circulation time. To achieve precisely controlled loading and ...
2017, 45(7): 1088-1095
doi: 10.11895/j.issn.0253-3820.170116
Abstract:
Subthalamic nucleus (STN) deep brain stimulation (DBS) has become an important surgical treatment of Parkinson disease, but its exact mechanism is still unclear. In this study, a 16-channel implantable microelectrode array (MEA) was prepared by micro...
Subthalamic nucleus (STN) deep brain stimulation (DBS) has become an important surgical treatment of Parkinson disease, but its exact mechanism is still unclear. In this study, a 16-channel implantable microelectrode array (MEA) was prepared by micro...
2017, 45(7): 1096-1101
doi: 10.11895/j.issn.0253-3820.170136
Abstract:
An electrospray/ultraviolet lamp dual-source ion trap mass spectrometer was developed for the rapid detection of gas and liquid samples. The instrument used the discontinuous atmospheric pressure sampling technique that both the electrospray ions and...
An electrospray/ultraviolet lamp dual-source ion trap mass spectrometer was developed for the rapid detection of gas and liquid samples. The instrument used the discontinuous atmospheric pressure sampling technique that both the electrospray ions and...
