主營產品：圓形水(shuǐ)浴氮吹儀,平(píng)行(háng)濃縮(suō)儀,玻璃反射測試儀(yí)
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產品時間2025-07-31
瀏覽(lǎn)量1601
所(suǒ)屬(shǔ)分類紫外可見分(fēn)光光度計(jì)
報價(jià)68888
| 品牌 | 析譜(pǔ) | 光(guāng)譜(pǔ)帶寬 | 1.8nm |
|---|---|---|---|
| 波長準(zhǔn)確度(dù) | 0.5nm | 雜散光(S.L.) | 0.02%T |
| 波長範(fàn)圍(wéi) | 190-1100nm | 自(zì)動程(chéng)度 | 自(zì)動波(bō)長(cháng) |
| 接收(shōu)器類 | 光(guāng)電(diàn)倍增管(guǎn)（PMT） | 儀器(qì)結(jié)構 | 雙波長 |
| 價格區(qū)間(jiān) | 5千-1萬(wàn) | 應用領(lǐng)域 | 環保,生(shēng)物產(chǎn)業,石油(yóu),能源(yuán),製(zhì)藥/生物製(zhì)藥(yào) |
冷(lěng)卻液氯離子(zǐ)自動檢(jiǎn)測儀紫外(wài)可見分光光度(dù)計介紹(shào)：
所(suǒ)輸(shū)入的(dí)因子(zǐ)個數與所(suǒ)選擇(zé)的(dí)曲綫擬合(hé)方法(fǎ)有關，下表(biǎo)是(shì)其(qí)對(duì)應(yīng)關係(xì)：
曲綫擬合(hé)方法(fǎ) | 曲綫方(fāng)程表達式 | 所(suǒ)需輸(shū)入的因子(zǐ)數 |
一(yī)階(jiē)綫(xiàn)性過零擬合(hé) | C=K1×A | K1, r* |
一階(jiē)綫(xiàn)性(xìng)擬合(hé) | C=K0+K1×A | K0,K1,r* |
二階(jiē)擬(nǐ)合 | C=K0+K1×A+K2×A2 | K0,K1,K2 |
三(sān)階擬合(hé) | C=K0+K1×A+K2×A2+K3×A3 | K0,K1,K2,K3 |
試驗前(qián)的準備(bèi)
Ÿ 將(jiāng)試驗用(yòng)比色皿或(huò)試管用蒸(zhēng)餾水(shuǐ)或其他專門的(dí)清(qīng)洗劑(jì)清(qīng)洗(xǐ)幹淨(jìng)，並(bìng)用(yòng)柔(róu)軟的(dí)棉布或紙巾(jīn)將(jiāng)其表(biǎo)麵(miàn)的手(shǒu)指(zhǐ)印或(huò)滴(dī)液擦試(shì)幹淨；
Ÿ 將盛參(cān)比液(yè)的比色(sè)皿(mǐn)放入4聯手(shǒu)動樣品架（紫外可見分光光度(dù)計係列(liè)）或固定(dìng)單個樣品(pǐn)架（對(duì)於雙(shuāng)光束紫外可見分光光度計(jì)）最(zuì)靠近你的(dí)槽位(wèi)中(zhōng)，再將(jiāng)推杆(gān)向前推到頭(tóu)使比(bǐ)色皿正對(duì)光(guāng)路，關上樣品(pǐn)室(shì)蓋；
Appendix B
Correction Methods
A number of correction techniques can be used to eliminate or reduce interference errors.In general,if the source of the error is known and is consistent from sample to sample.the error can be eliminated.On the other hand,if the source is unkown and varies from sample to sample,the error can be reduced but not eliminated.Correction techniques can always require data from at least two wavelengths. The more sophisticated correction techniques require multiwavelenghth or spectral data.
A.1 Isoabsorbance
When a known interfering component with a known spectrum is present,the error introduced by this component at the analytical wavelength for the target analyte can be eliminated by selecting a reference wavelength at which the interfering compound exhibits the same absorbance as it does at the analytical wavelength.The absorbance at this reference wavelength is subtracted from the absorbance at the analytical wavelength,as shown in Figure A1.The residual absorbance is the ture absorbance of the analyte.
This technique is less reliable when the spectra of the analyte and of the interferent are highly similar.Moreover,it can correct for only one interference
如(rú)需了解(jiě)冷卻液氯離(lí)子自動檢(jiǎn)測儀(yí)紫外可(kě)見分光光(guāng)度(dù)計(jì)更多信息，歡(huān)迎(yíng)來(lái)咨詢！
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