특징
시안화물(Free cyanide)/KYORITSU
CN- ≤0.02 - 2 mg/L
반응시간:10분
측정횟수:40회
PACK TEST

적용분야
배수관리, 독성물질검출

기능
발색시약이 들어있는 비닐튜브에 물샘플을 넣고, 지정시간이 지난 후 표준색과 비교하는 방법으로 수질을 검사하는 쉽고 편리한 수질 검사용 팩입니다.PH조정등 비색적정에 필요한 전처리 과정을 최대한 줄여 누구라도 쉽게 측정할 수 있도록 고안하였습니다.측정결과를 5분안에 알수 있습니다.(일부항목제외),분석용 시험지에 비해 좀더 낮은 농도까지 측정할 수 있다.

Range:≤0.02, 0.05, 0.1, 0.2, 0.5, 1, 2mg/l

Method:4-Pyridinecarboxylic Acid

Reaction Time:5min

Quantity(pcs/box):40

 

Interferences

Standard colors were determined from standard solutions. However, coexisting substances will

cause inaccurate results. The list below reports ion concentrations under which ones interferences

are insignificant:

≤ 1000 mg/L : Al3+, As3+, B3+, Ba2+, Ca2+, Cd2+, Cl-, F-, K+, Mg2+, Mn2+, Na+, NH4

+, NO3

-, Pb2+,

PO4

3-, SO4

2-, Zn2+, Phenol

≤ 500 mg/L : Ni2+

≤ 100 mg/L : Co2+, Cr3+, Fe2+, Sn2+

≤ 50 mg/L : Cu2+, Fe3+

≤ 10 mg/L : NO2

-

≤ 5 mg/L : Cr6+, V5+, Residual chlorine

Sub-ppm level : Hg2+, I-, SO3

2-, SCN-, some kinds of ethylene amine

Almost all the coexistence substances may weaken the color development of CN-. It is admitted

that thiocyanide and some kinds of ethylene amin (tetraethylene-pentamine,

pentaethylene-hexamine) may show stronger color development.

Oxidative and reductive substances may also influence to developed color.

The Cyanide (free) PACKTEST is not suitable for sea water samples.

For the industrial waste water samples in which interfering substances are expected, a

pretreatment like distillation method or aeration method is required before the measurement.

Cyanide complex ions bonding with various metal ions can not be detected as free cyanide. These

complex ions should be measured using the measurement kit for Total cyanide ion, ref: WA-CNT.

 

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