The influence of different concentration of oxalic acid matrix on elemental inductively coupled plasma mass spectrometry was investigated.
研究了不同浓度乙二酸介质对元素电感耦合等离子体质谱行为的影响。
A fresh supply of yellow froth (probably the same type of elemental sulfur found in the "cool acid-brine" crater lake at Kawa Ijen) is brought up by the plume and pushed out toward the crater wall.
一个新的黄色气泡(与在KawaIjen“冷酸海水”火山湖中的元素硫是同一类)是由热烟柱带出湖面，并推向岩壁。
The influence of different concentration of oxalic acid on elemental inductively coupled plasma mass spectrometry has been investigated.
研究了不同浓度下乙二酸对元素电感耦合等离子体质谱行为的影响。
The effects of surface active agents on the oxidative acid pressure leaching of sphalerite concentrate and the behaviors of the elemental sulfur produced were investigated.
本文考察了表面活性添加剂对锌精矿加压氧化酸浸过程及元素硫行为的影响。
Elemental analysis shows that the acid sludge formed contains more unsaturated substances and Fe than the original crude does.
研究认为，酸化淤渣含有许多不饱和物质，胶质和沥青质的含量同原油差别较大。
A new reagent 1 (8 Aminoquinoline 5 azo) 8 hydroxy 3,6 naphthalenedisulfonic acid(AQHNA) was synthesized. The product was confirmed by elemental analysis and infrared spectra.
合成了1 （8氨基喹啉5偶氮） 8羟基3 ，6萘二磺酸（AQHNA） ，其结构经红外光谱和元素分析证实。
Based on amino-acid composition determination, fungus testing, and SEM observation, the result shows that the elemental reason of the brittle silk forming is the fungus growing.
通过氨基酸成分测试、霉菌测试、电镜观察等项试验，表明霉菌是产生脆弱丝的基本原因。
Tetraacetyl glucosyl ester of 1 hydroxy 2 naphthoic acid was synthesized by PTC method and confirmed by IR, 1HNMR, MS and elemental analysis.
采用相转移催化法合成了1羟基2萘甲酸四乙酰葡萄糖酯，并进行了IR、1HNMR、MS和元素分析，证明了其结构。
Tetraacetyl glucosyl ester of 1 hydroxy 2 naphthoic acid was synthesized by PTC method and confirmed by IR, 1HNMR, MS and elemental analysis.
采用相转移催化法合成了1羟基2萘甲酸四乙酰葡萄糖酯，并进行了IR、1HNMR、MS和元素分析，证明了其结构。
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