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查看>全部纯度（尺码） 1000mg/l in h2o 100μg/ml in methanol 1000μg/ml,in purge and trap methanol 1000μg/ml in methanol 100mg/l in h2o 100μg/ml 1000mg/l 100mg/l 分析标准品, 1000ug/ml in methanol 1000μg/ml 1000μg/ml in h2o 1000μg/ml in methanol,不确定度2% 100μg/ml in acetone 100μg/ml in acetonitrile 2000ug/ml in purge and trap methanol 1000μg/ml in acetonitrile 1000μg/ml in n-hexane 1000μg/ml in water (20℃) 100μg/ml in h2o 100μg/ml in methylbenzene 1000μg/ml in acetone 1000μg/ml,in methanol 100μg/ml in n-hexane 1mg/ml 500mg/l in h2o 分析标准品, 1.00mg/ml in methanol 分析标准品, 1000ug/ml in water 0.1000mol/l(0.1n) 0.3m 100µg/ml in methanol 1000ug/ml in purge and trap methanol 1000μg/ml in methanol,uncertainty 2% 1000μg/ml in 乙腈 100μg/ml in ethanol 100μg/ml in methanol,不确定度3% 100μg/ml in water (20℃) 10mg/l in h2o 10mg/ml 10μg/ml in isooctane 1mg/ml,gb/t 5009 1mmol/l 200μg/ml 2mg/ml 2μg/ml in methanol 2μg/ml 50μg/ml 分析标准品, 0.001g/ml in water 分析标准品, 1000ug/ml in 0.05mol/l naoh 分析标准品, 100mg/l in 0.05%na2co3 分析标准品, 100ug/ml in acetone 分析标准品, 10ug/ml in acetone 0.01000mol/l(0.01n) 0.01m in propanol 0.025m 0.05000mol/l(0.05m) 0.05m 0.1000mol/l in water 0.1mol/l 0.1m 0.2 mg/ml于异辛烷 0.2% in methanol 0.25g/l 0.706umol/g,in water 1.0m 1.8mg/l左右 1/6mol/l(1n) 10µg/ml in acn 10.0ng/g,基体: 0.4mol/l hcl,k+2.2mg/l,na+23mg/l, ca2+39mg/l,mg2+11mg/l 100 µg/ml于乙腈 1000 µg/ml 1000 mg/l于己烷 1000mg/l in 0.05mol/l硫酸 1000mg/l in 10% hno3 1000mg/l in 5% hno3 1000mg/l in h2o(介质:1mol/l氢氧化钠) 1000mg/l in n-hexane 1000mg/l于甲醇 1000ppm in water 1000ug/ml in ethyl acetate 1000ug/ml in h2o 1000ug/ml in toluene 1000μg/ml in 1%hf+5%hno3 1000μg/ml in acetonitrile,不确定度 2% 1000μg/ml in acetonitrile:watere(1:1) 1000μg/ml in methanol:watere(1:1) 1000μg/ml in purge and trap methanol 1000μg/ml 乙腈溶液 1000μg/ml 于乙腈 1000μg/ml,溶剂:1.0 mol/l hno3 and tr. hf 100mg/l in h2o(介质:0.002mol/l氢氧化钠) 100mg/l(介质:20%硝酸 +10%盐酸) 100mg/l,介质:甲醛吸收液 100mg/l,溶于吹扫-捕集甲醇溶液中 100mg/l于乙腈 100mmol/l 100ug/ml in 1%hcl 100ug/ml 甲醇 100μg/ml in acetonitrile,不确定3% 100μg/ml in acetonitrile,不确定度 3% 100μg/ml in cyclohexane 100μg/ml in dichloromethane 100μg/ml in ethyl acetate 100μg/ml in h2o(基质:0.5%碳酸钠) 100μg/ml in isooctane 100μg/ml in methanol,uncertainty 3% 100μg/ml(以呋喃西林代谢物-13c,15n2计) in methanol 100μg/ml于乙腈 10g/l,qb/t 5012-2016 10mg/ml,gb/t 5009.7 10mmol/l 10μg/ml 乙腈溶液 1413μs/cm(25℃)in h2o,不确定度:0.25% 1mmol/l(介质:0.1mol/l盐酸/gb 5009.124-2016) 1m 1μg/ml in acetonitrile 2.00μg/ml in methanol 2.0m 2.5g/l,qb/t 5012-2016 2.5g/l 2.5mg/ml,gb/t 5009.7 20% 20000μg/ml in h2o 2000mg/l in 0.05mol/l硫酸 2000ug/ml in toluene 2000μg/ml 200ug/ml in purge and trap methanol 200μg/ml in methanol 230.0μg/ml,溶剂:甲醇 25μg/ml 甲醇溶液 4000μg/ml in dichloromethane 400ntu 40g/l 5% 5,10,20,50,100(μg/ml) 5.8g/l 50µg/ml in acetonitrile 50µg/ml 于乙腈 5000mg/l in h2o 500g/l in water 500μg/ml in ethanol 500μg/ml in h2o 500μg/ml in water (20℃) 500μg/ml 50mg/ml 5mmol/l 5μg/ml 80mmol/l 9.08μg/ml 98% bsa,100mg/ml bsa,10mg/ml bsa,1mg/ml bsa,20mg/ml bsa,50mg/ml bsa,5mg/ml c(1/2br2)=0.1000mol/l c[pb(no3)2]=0.05000mol/l covenan 50ug/ml,in 0.1mol/l naoh description:non ratio 20 ntu description:non ratio 60 ntu volumetric standard,0.05m in water volumetric,0.1000mol/l in water ~1.000g/l ≥99% 不同浓度 分析标准品, 0.0001g/ml in water 分析标准品, 0.1000mol/l(0.1n) 分析标准品, 0.1mg/ml in isooctane 分析标准品, 0.1mg/ml in methanol 分析标准品, 0.243mg/l,in 1%hcl 分析标准品, 0.50mg/ml in water 分析标准品, 1/24mol/l(0.25n) 分析标准品, 1/60mol/l(0.1n) 分析标准品, 100 μg/ml in acetonitrile 分析标准品, 1000ug/ml in 1.0mol/l hno3 分析标准品, 1000μg/ml in 1.0mol/l hcl 分析标准品, 1000μg/ml,in methanol 分析标准品, 100g/l 分析标准品, 100mg/l in formaldehyde solution 分析标准品, 100ug/ml in hexane 分析标准品, 100μg/ml in 5%hcl 分析标准品, 100μg/ml in water 分析标准品, 10ug/ml in benzene 分析标准品, 10ug/ml in toluene 分析标准品, 136.0ug/ml in methanol 分析标准品, 500mg/l in water 分析标准品, 500ug/ml in methanol 分析标准品, 9.24μg/ml in methanol 描述:总有机碳标准1000ppm 描述:总有机碳标准100ppm 描述:总有机碳标准20ppm 生物技术级,1mg/ml 生物技术级,20mg/ml 生物技术级,2mg/ml 生物技术级,5mg/ml 甲醛标准1mg/ml 硫含量20ppm 运动粘度(20℃):10 mm²/s 运动粘度(20℃):100 mm²/s 运动粘度(20℃):200 mm²/s