砷

Copper reagent silver method ; colorimetric determination ; tungsten trioxide ; Arsenic

铜试剂银法；比色测定；三氧化钨；砷

Methods The thyroid gland inspection was conducted with touch method, arsenic cerium catalysis spectrophotometric method was adopted to detect urine iodine, and the iodine salt determination was conducted by the direct titrimetric method.

甲状腺检查用触摸法，尿碘测定用砷饰催化分光光度法，碘盐测定用直接滴定法。

Many test parameters proposed in these methods have widely accepted in the literature for sample pretreatment, tem-perature, enzyme dose, pH, and reaction time. This study used sodium arsenate (Na2HAsO4E7H2O) and NIST 2710 soil as the standards to investigate the effect of mixing intensity, liquid to solid ratio, extraction time, and extract pretreatment methods for the determination of bioavailability.

文献中对於体外试验操作参数与程序，如样品前处理、温度、酵素添加量、胃肠相pH值与反应时间等参数已渐趋一致，本研究针对尚未深入探讨之重要参数进行试验，以砷酸钠(Na2HAsO4.7H2O)与标准土让(NIST 2710 soil)，探讨蠕动强度、液固比、小肠相萃取时间以及萃取液前处理方式对生物有效性之影响。

Objective To understand the situation of secondary skin cancer of hyperkeratosis of skin spot caused by coal-burning type of arsenic poisoning.

摘 要：目的了解燃煤型砷中毒皮肤角化点继发皮肤癌变的情况。

In the second half of the thesis, the basic theory and structure of switch are described. The 60GHz and 77GHz single-pole double-throw switches are designed in shunt configuration with PHEMT on GaAs substrate.

本论文后半部分介绍了开关设计的基本原理及架构，并利用并联型的架构，以PHEMT为电晶体，砷化镓为基板，设计频率工作在60GHz与77GHz的单刀双掷开关。

Silver salt method was set up to measure the content of arsenic trioxide in Niuhuang Jiedu Pian and Niuhuang Jiedu Wan.

建立了银盐法测牛黄解毒片和牛黄解毒丸中三氧化二砷含量的方法。

Buried Layer - A path of l ow resistance for a current mo ving in a devi ce. Many of these

埋层 -为了电路电流流动而形成的低电阻路径，搀杂剂是锑和砷。

Samples were prepared with pressed powder pellet method by mixing synthetic sample and standard sample.

采用人工混配有限煤炭标准样品粉末直接压片制样，X射线荧光光谱仪同时测量煤中的砷、硫、磷、氯。

Possibilities include altering farm practices--growing paddy rice in raised beds, for instance--and engineering rice plants to shed arsenic.

可能采取的措施包括改变农场的做法，例如：在凸起的培育床上种植水稻以及采用遗传工程学的方法去除其中的砷等。

Numerical examples were given for InAs/GaAs QWRs in both (001) and (111) growth directions for square and trapezoidal QWR crosssections.

数值例子给出的InAs /砷化镓qwrs在这两个（ 001 ）和（ 111 ）生长方向，为广场和梯形qwr crosssections 。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。