Results 91 to 100 of about 260,704 (287)

Determination of As, Sb and Bi in Soil and Stream Sediment by a Self-developed Hydride Generation System Coupled with Inductively Coupled Plasma-Optical Emission Spectrometry

open access: yesYankuang ceshi, 2015
Hydride Generation (HG) combined with Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) has excellent analytical sensitivity. However, the instable chemical reactions of HG may cause unsatisfactory analytical precision.
WU Zheng, XIONG Ying, WANG Long-shan
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

open access: yesAdvanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu   +10 more
wiley   +1 more source

ICP-OES测定废水中总磷

open access: yesGongye shui chuli, 2011
为研究ICP-OES法测定废水中总磷, 通过测定在不同射频功率、观测高度、载气流量和进样量条件下谱线的净强度, 得到了灵敏度的变化规律。进行仪器参数优化后, 测定样品。结果表明, 检出限为0.05 mg/L, 质控样相对误差为1.21%, 相对标准偏差为0.96%(n=6), 样品回收率为98.4%。该法试剂用量比常规的分光光度法少, 效率高, 用于测定废水中的总磷是切实可行的。
陈江   +4 more
doaj   +2 more sources

Laser Preset of MnOx Layer on High‐Entropy Alloy Surface for Ampere‐Level Ultra‐Stable OER Performance

open access: yesAdvanced Science, EarlyView.
3D printing enables a high entropy alloy‐derived, in situ formed MnOx overlayer that suppresses oxidation–reconstruction and mitigates anodic dissolution, while enhancing electrolyte wetting and bubble release to accelerate interfacial mass transport and OER kinetics.
Benzhi Wang   +8 more
wiley   +1 more source

Spatial and Diurnal Variations in Sodium Content Within Intervertebral Disc Tissue

open access: yesJOR Spine
Background Daily cycles in tissue osmolarity within the intervertebral disc (IVD) are a biophysical signal that regulates cellular metabolism and arise from deformation of the charged and hydrated extracellular matrix (ECM).
Jordin T. Marshall   +4 more
doaj   +1 more source

Intrinsic Dual‐Phase Regulated GeSe2 Nanoparticles Triggered by Ball‐Milling Treatment for Photonic Multi‐Valued Logic Circuits

open access: yesAdvanced Science, EarlyView.
We report the solid‐state ball milling, a traditional, reliable, mass‐productive material processing, to prepare the air‐stable and dual‐phase GeSe2‐x nanoparticles with extended photodetection feasibility toward optical‐wavelength regions. We further display photonic multi‐valued logic (MVL) circuit through the employment of a hybrid PMMA/GeSe2‐x ...
An‐Ting Tsai   +8 more
wiley   +1 more source

Determination of Silicon in Soil and Sediment by ICP-OES with Rapid Ultrasonic Digestion

open access: yesYankuang ceshi
The literature provides references for the accurate determination of silicon content in soil and sediment by inductively coupled plasma-optical emission spectrometry (ICP-OES).
Shengnan KONG, Shi XU
doaj   +1 more source

High Tree Species Diversity Promotes Thermal Enhancement Response of Microbial Carbon Use Efficiency

open access: yesAdvanced Science, EarlyView.
ABSTRACT Predicting soil carbon dynamics under warming is constrained by limited understanding of microbial thermal adaptation, particularly whether microbial carbon use efficiency (CUE) can adapt to warming and how plant diversity modulates this response. Using soils from a natural tree species diversity gradient in a subtropical forest, we combined a
Pengpeng Duan   +11 more
wiley   +1 more source

PRMT5‐Dependent Stabilization of VPS34 Orchestrates Copper Trafficking to Shield Cancer Cells from Cuproptosis and Radiotherapy

open access: yesAdvanced Science, EarlyView.
Radioresistance arises partly from tumor cells evading cuproptosis via unknown defenses. This study reveals that the PRMT5‐VPS34 axis acts as a radiation‐activated anticuproptotic mechanism: PRMT5 methylates VPS34 at Arg174, recruiting USP10 to remove K48‐linked ubiquitination and prevent degradation.
Wei Chen   +17 more
wiley   +1 more source

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